The provision in Rev.Stat. § 4887 respecting a "patent granted
for an invention which has been previously patented in a foreign
country" refers to foreign patents granted previously to the issue
of letters patent for the same invention by the United States, and
not to foreign patents granted previously to the application for
the American letters.
When such foreign letters issue before the United States letters
issue, the American patent is so limited as to expire at the same
time with the foreign patent having the shortest term, but in no
case is it to be in force more than seventeen years.
When the language used in a statute is plain and unambiguous, a
refusal to recognize its natural obvious meaning may be justly
regarded as indicating a purpose to change the law by judicial
action, based upon some supposed policy of Congress.
United States v. Bowen, 100 U.
S. 508, cited approvingly to the point that
"the Revised Statutes must be treated as the legislative
declaration of the statute law on the subjects which they embrace
on the first day of December, 1873,"
and that
"when the meaning is plain, the courts cannot look to the
statutes which have been revised to see if Congress erred in that
revision, but may do so when necessary to construe doubtful
language used in expressing the meaning of Congress. "
Page 157 U. S. 2
The certificate of questions sent up in this case was as
follows:
"A decree dismissing the bill in this cause after a hearing upon
the setting down of pleas thereto having been made in the Circuit
Court for the Southern District of New York, and an appeal having
been taken therefrom to this court, and the appeal having been
taken therefrom to this court, and the cause having come on for
final hearing, certain questions of law arose concerning which
court desires the instruction of the Supreme Court of the United
States for its proper decision. The facts out of which the
questions arose appear from the bill and pleas thereto on file in
the cause, and are as follows:"
" On the first day of December, 1876, John J. Bate applied for
letters patent for an improvement in processes for preserving
meats, etc., and after sundry proceedings in the United States
Patent Office, including an appeal to the examiners-in-chief, as
well as a subsequent contested interference with a patent to one
Exekiel S. Halsted, a patent was issued to said Bate on the 20th
day of November, A.D. 1877, the grant being in terms for seventeen
years. Afterwards, on the 22d dat of November, 1877, said John J.
Bate assigned said patent to the Bate Refrigerating Company, the
assignment being duly recorded on the 23d day of November,
1877."
" After the application had been filed in the United States
Patent Office and before the patent was issued, two foreign patents
were granted for the same invention, to-wit, one patent granted by
the British government to William Robert Lake on a communication
from said Bate dated January 28, 1877, for the term of fourteen
years from said date, said patent being sealed July 13, 1877, and
the complete specification being filed July 26, 1877, and the said
invention was patented or caused to be patented by the said Bate,
the other of said patents granted by the government of the Dominion
of Canada to the same John J. Bate under date of January 9, 1877,
for five years. Both foreign patents expired before the expiration
of the seventeen years specified in the grant of the United States
patent to Bate. The bill was filed July 25, 1892, and prayed for an
injunction against infringement and for an account. "
Page 157 U. S. 3
" Upon these facts, this court desires instruction upon
questions of law for the proper decision of said cause, namely,
whether the invention for which the United States patent aforesaid
was issued to said John J. Bate had been 'previously patented in a
foreign country' within the meaning of those words in section 4887
of the Revised Statutes, and whether the said patent expired under
the terms of said section before the expiration of the term of
seventeen years from its date, and to that end hereby certifies
said questions to the Supreme Court. "
Page 157 U. S. 17
MR. JUSTICE HARLAN delivered the opinion of the Court.
This case is before us upon a certificate made under the sixth
section of the Act of March 3, 1891, 26 Stat. 826, c. 517,
providing that a circuit court of appeals may, in any case of which
it has appellate jurisdiction, certify questions or propositions of
law for the proper decision of which it desires the instruction of
this Court.
On the first day of December, 1876, John J. Bate made
application to the United States for letters patent for an
improvement in processes for preserving meats during storage and
transportation.
Pending this application, two foreign patents were granted for
the Bate invention, one for the term of fourteen years by the
British government to William Robert Blake on a communication from
Bate under date of January 29, 1877, which patent was sealed July
13, 1877, and the complete specifications of which were filed July
26, 1877, the other for
Page 157 U. S. 18
the term of five years by the government of the Dominion of
Canada to Bate himself under date of January 9, 1877.
After these foreign patents were issued, namely, on the 20th day
of November, 1877, Bate received a patent from the United States,
expressed to be for the term of seventeen years, and assigned it to
the Bate Refrigerating Company, the plaintiff in this suit.
The present suit was brought by that company July 25, 1892, for
an injunction against the infringement of the American patent, as
well as for an accounting. It was heard in the circuit court on
pleas to the bill, and a decree was passed dismissing the suit.
From that decree an appeal was taken to the circuit court of
appeals.
Both foreign patents for the Bate invention having expired
before the expiration of the seventeen years specified in the
United States patent, the following questions arose in and have
been certified by the circuit court of appeals: whether the
invention for which the patent from the United States was issued
had been "previously patented in a foreign country," within the
meaning of those words in section 4887 of the Revised Statutes, and
whether the American patent expired, under the terms of that
section, before the expiration of seventeen years from its
date.
The Revised Statutes of the United States provide that any
person inventing or discovering any new and useful art, machine,
manufacture, or composition of matter, or any new and useful
improvement thereof,
"not known or used by others in this country, and not patented
or described in any printed publication in this or any foreign
country, before his invention or discovery thereof, and not in
public use or on sale for more than two years prior to his
application, unless the same is proved to have been abandoned,"
may obtain a patent therefor, which shall contain a grant of the
exclusive right for the term of seventeen years to make, use, and
vend such invent on or discovery throughout the United States and
the territories thereof, and bear date as of a day not later than
six months from the time at which it was passed and allowed, and
notice thereof sent to the applicant or his agent. §§
4884-4886.
Page 157 U. S. 19
By section 4887, it is provided that
"no person shall be debarred from receiving a patent for his
invention or discovery, nor shall any patent be declared invalid,
by reason of its having been
first patented or caused to
be
patented in a foreign country, unless the same has been
introduced into public use in the United States more than two years
prior to the application. But every patent granted for an invention
which has been
previously patented in a foreign country,
shall be so limited as to expire at the same time with the foreign
patent, or, if there be more than one at the same time with the one
having the shortest term, and in no case shall it be in force more
than seventeen years."
Other sections prescribe what the application for a patent shall
contain, the nature of the oath or affirmation to be made by the
applicant, and the time within which an application shall be
completed and prepared for examination. §§ 4888, 4892, 4894.
The plaintiff insists that an invention patented or caused to be
patented in a foreign country before being patented in this country
should not be deemed to have been "previously patented in a foreign
country," within the meaning of section 4887, unless the foreign
patent was granted
prior to the
application for
the American patent.
The defendants contend that the respective dates of the American
and foreign
patents, and not the date of the American
application, determine the question whether an invention patented
here has been "previously patented in a foreign country."
Counsel for the respective parties have deemed it necessary to
refer very fully to the principal statutes relating to patents for
inventions. In our consideration of the case the same method will
be pursued, reserving any observations we may make upon the words
of particular acts until we shall have given an outline of the
history of such legislation by Congress as is supposed to bear upon
the questions certified.
The first act of Congress passed under the authority given by
the Constitution to promote the progress of science and useful arts
by securing for limited times to authors and inventors
Page 157 U. S. 20
the exclusive right to their respective writings and discoveries
was approved April 10, 1790, c. 7, 1 Stat. 109. The persons to
whom, under that act, patents could be issued, were those inventing
or discovering any useful art, manufacture, engine, machine, or
device, or any improvement therein "not before known or used." The
applicant was required at the time the patent was granted, to
deliver to the Secretary of State such specification in writing,
containing a description of the invention or discovery --
accompanied, when necessary, with drafts or models, and
explanations of the thing invented or discovered -- as would
distinguish the invention or discovery from other things "before
known and used," and enable one skilled in the art or manufacture
to make, construct, or use the same, "to the end that the public
may have the full benefit thereof after the expiration of the
patent term." §§ 1, 2.
The Act of February 21, 1793, c. 11, which took the place of the
act of 1790, made no material change except to restrict the right
to a patent to citizens of the United States and to provide that
the invention or discovery sought to be patented should be one "not
known or used before the application." 1 Stat. 318. In
Pennock v.
Dialogue, 2 Pet. 1,
27 U. S. 19-21,
Mr. Justice Story, speaking for the Court, said that the addition
made by the act of 1793 of the words "before the application" after
the words "not known or used" in the act of 1790 was made
ex
industria with the intention "to clear away a doubt, and fix
the original and deliberate meaning of the legislature," which was
that the invention should be one not known or used by the public
before the application.
Then came the Act of April 17, 1800, c. 25, which extended the
provisions of the act of 1793 to all aliens residing for two years
in the United States, and who should make oath or affirmation that
the invention, art, or discovery for which a patent was asked had
not "been known or used either in this or any foreign country."
That act further provided that any patent for an invention, art, or
discovery, subsequently found to have been "known or used previous
to such application for a patent," should be void. 2 Stat. 37.
Page 157 U. S. 21
The provisions of the act of 1800 were extended by the Act of
July 13, 1832, c. 203, to every alien who at the time of
petitioning for a patent was a resident of this country and had
declared his intention, according to law, of becoming a citizen of
the United States. But every patent granted under the latter act
was to become void if the patentee failed for one year after its
date to introduce into public use in the United States the
invention or improvement for which his patent was issued, or in
case the invention or improvement should, for any period of six
months after such introduction, not continue to be publicly used
and applied in the United States, or in case of his failure to
become a citizen of the United States at the earliest period within
which he could become such citizen. 4 Stat. 577.
On the 4th day of July, 1836, Congress passed an act entitled
"An act to promote the progress of useful arts and to repeal all
acts and parts of acts heretofore made for that purpose." 5 Stat.
117, c. 357.
By the fifth section of that act it was provided that every
patent should be for a term of fourteen years.
The sixth section described those entitled to receive patents,
namely,
"any person or persons having discovered or invented any new and
useful art, machine, manufacture, or composition of matter, or any
new and useful improvement in any art, machine, manufacture, or
composition of matter not known or used by others before his or
their discovery or invention thereof and not at the time of his
application for a patent in public use or on sale with his consent
or allowance as the inventor or discoverer."
The seventh section prescribed an examination of the alleged new
invention or discovery, and provided:
"If, on any such examination, it shall not appear to the
commissioner that the same had been invented or discovered by any
other person in this country prior to the alleged invention or
discovery thereof by the applicant, or that it had been patented or
described in any printed publication in this or any foreign
country, or had been in public use or on sale with the applicant's
consent or allowance prior to the application, if
Page 157 U. S. 22
the commissioner shall deem it to be sufficiently useful and
important, it shall be his duty to issue a patent therefor. But
whenever, on such examination, it shall appear to the commissioner
that the applicant was not the original and first inventor or
discoverer thereof, or that any part of that which is claimed as
new had before been invented or discovered, or patented, or
described in any printed publication in use in this or any foreign
country, as aforesaid, or that the description is defective and
insufficient, he shall notify the applicant thereof, giving him,
briefly, such information and references as may be useful in
judging of the propriety of renewing his application, or of
altering his specification to embrace only that part of the
invention or discovery which is new."
The eighth section, after providing for the hearing and decision
of opposing claims of priority of right or invention, declared:
"But nothing in this act contained shall be construed to deprive
an original and true inventor of the right to a patent for his
invention by reason of his having previously taken out letters
patent therefor in a foreign country, and the same having been
published at any time within six months next preceding the filing
of his specification and drawings. And whenever the applicant shall
request it, the patent shall take date from the time of the filing
of the specification and drawings, not however exceeding six months
prior to the actual issuing of the patent, and on like request, and
the payment of the duty herein required, by any applicant, his
specification and drawings shall be filed in the secret archives of
the office until he shall furnish the model and the patent be
issued, not exceeding the term of one year, the applicant being
entitled to notice of interfering applications."
5 Stat. 120.
We come next to the Act of March 3, 1839, c. 88, entitled "An
act in addition to
An act to promote the progress of the useful
arts.'" 5 Stat. 35. By § 6 of that act, p. 354, it was declared
--
"That no person shall be debarred from receiving a patent for
any invention or discovery, as provided in the act approved on the
fourth day of July, one thousand eight hundred and
Page 157 U. S. 23
thirty-six, to which this is additional, by reason of the same
having been patented in a foreign country more than six months
prior to his application,
provided that the same shall not
have been introduced into public and common use in the United
States, prior to the application for such patent,
and provided
also that in all cases every such patent shall be limited to
the term of fourteen years from the date or publication of such
foreign letters patent."
By the Act of March 2, 1861, c. 88, it was provided that all
patents thereafter granted should remain in force "for the term of
seventeen years from the date of issue," and all extensions of such
patents were prohibited. 12 Stat. 246, c. 88, § 16.
By an Act approved June 27, 1866, c. 140, 14 Stat. 74, provision
was made for the appointment of three persons, learned in the law,
as commissioners, "to revise, simplify, arrange, and consolidate
all statutes of the United States, general and permanent in their
nature," which should be in force at the time of their final
report. They were directed to
"bring together all statutes and parts of statutes which, from
similarity of subject, ought to be brought together, omitting
redundant or obsolete enactments, and making such alterations as
may be necessary to reconcile the contradictions, supply the
omissions, and amend the imperfections of the original text, and
they shall arrange the same under titles, chapters, and sections,
or other suitable divisions and subdivisions, with headnotes
briefly expressive of the matter contained in such divisions; also
with sidenotes, so drawn as to point to the contents of the text,
and with references to the original text from which each section is
compiled, and to the decisions of the federal courts, explaining or
expounding the same, and also to such decisions of the state courts
as they may deem expedient, and they shall provide by a temporary
index, or other expedient means, for an easy reference to every
portion of their report."
Upon the completion of their work they were to
"cause a copy of the same, in print, to be submitted to
Congress, that the statutes so revised and consolidated may be
reenacted, if Congress shall so determine, and at the same time
they shall also suggest to Congress such contradictions, omissions,
and imperfections
Page 157 U. S. 24
as may appear in the original text, with the mode in which they
have reconciled, supplied, and amended the same, and they may also
designate such statutes or parts of statutes as, in their judgment,
ought to be repealed, with their reasons for such repeal."
They were authorized to cause their work to be printed in parts
as fast as it was ready for the press, and distribute the same to
members of Congress, and to such other persons, in limited numbers,
as they saw fit, for the purpose of obtaining their suggestions. 14
Stat. 74, c. 140, §§ 1 to 4, inclusive.
One of the results of that statute was the passage by Congress
of the Act of July 8, 1870, c. 230, entitled "An act to revise,
consolidate, and amended the statutes relating to patents and
copyrights." 16 Stat 198. The original bill upon which that act was
based was the work of the revisers appointed under the above act of
1866.
The act of 1870 declared, among other things, that every patent
should be expressed for the term of seventeen years, and should
date as of a day not later than six months from the time at which
it was passed and allowed. §§ 22, 23.
But the parts of that act which have most to do with the case
before us are its twenty-fourth and twenty-fifth sections. The
twenty-fourth section describes, in the language of section 4886 of
the Revised Statutes, as above quoted, those who are entitled to
patents. The twenty-fifth section is in these words:
"§ 25. That no person shall be debarred from receiving a patent
for his invention or discovery, nor shall any patent be declared
invalid, by reason of its having been first patented or caused to
be patented in a foreign country,
provided the same shall
not have been introduced into public use in the United States for
more than two years prior to the application, and that the patent
shall expire at the same time with the foreign patent, or, if there
be more than one at the same time with the one having the shortest
term, but in no case shall it be in force more than seventeen
years."
16 Stat. 198, 201, c. 230.
From this history of acts of Congress relating to patents for
inventions, it appears:
1. That in all of them Congress had in mind the date of an
Page 157 U. S. 25
application for a patent, the date of the filing of
specifications, and the date of the patent.
2. That under the act of 1836, a patent could not be granted if
it appeared that the applicant was not the original and first
inventor or discoverer, or that any part of that which was claimed
as new had before been invented or discovered, or patented or
described in any foreign publication in use in this or any foreign
country. Yet an original and true inventor was not to be deprived
of a patent for his invention
"by reason of his having previously taken out letters patent
therefor in a foreign country and the same having been published at
any time within six months next preceding the filing of his
specification and drawings."
3. That, under the act of 1839, an inventor whose invention had
not been introduced into public and common use in the United States
prior to the application for a patent should not be debarred from
receiving a patent by reason of his invention's "having been
patented in a foreign country more than six months prior to his
application."
4. That under the act of 1870, one whose invention had not been
introduced into public use in the United States for more than two
years prior to the application for an American patent should not be
debarred from receiving a patent by reason of his invention's
"having been first patented or caused to be patented in a foreign
country" -- those words not being qualified, as in the act of 1839,
by any reference to the date of the application.
5. That when an American patent was granted in conformity with
the sixth section of the act of 1839 for an invention "patented in
a foreign country more than six months prior to the American
application," it expired in every case at the end of fourteen years
"from the date or publication of such foreign letters patent," and
when in conformity with the twenty-fifth section of the act of 1870
a patent was granted for an invention "first patented or caused to
be patented in a foreign country," it expired "at the same time
with the foreign patent," or, if there were more than one, "at the
same time with the one having the shortest term."
Page 157 U. S. 26
6. That under the Revised Statutes, while a patent could not be
withheld nor deemed invalid by reason of the invention's
"having been first patented or caused to be patented in a
foreign country, unless the same has been introduced into public
use in the United States more than two years prior to the
application,"
yet "every patent granted for an invention previously patented
in a foreign country hall be so limited as to expire at the same
time" with the one having the shortest term -- in no case to remain
in force longer than seventeen years.
Notwithstanding the difference in the wording of these statutes,
the plaintiff contends that the words in the act of 1870, "first
patented or caused to be patented in a foreign country," and the
same words, together with the words, "previously patented in a
foreign country," in the Revised Statutes, refer to a foreign
patent issued prior to the application for the American patent, and
do not embrace a foreign patent issued after such application,
although issued before the American patent was issued. In other
words, the contention is that when the same invention is patented
both in this country and abroad, the American patent remains in
force for seventeen years from its date, if the foreign patent was
issued after the application for, although prior to the date of,
the American patent.
What was the interpretation placed upon the act of 1870 by the
executive branch of the government?
The objects and scope of that act were considered by Mr. Fisher,
the Commissioner of Patents, in several cases, within a few months
after the passage of the act of 1870. The decisions of the
commissioner derive some importance from the fact that they were
rendered while the changes made by the act of 1870 were fresh in
the minds of those who, like himself, took special interest in
legislation affecting patent rights.
In
Mushet's Case, decided September 19, 1870, the
question was as to the extension of letters patent for an
improvement in the manufacture of iron and steel, granted May 26,
1857, and antedated September 2, 1856. The commissioner, referring
to the twenty-fifth section of the act of 1870, said:
Page 157 U. S. 27
"When therefore, the statute declares that the patent shall
expire at the same time with the foreign patent, I am very clearly
of the opinion that if at the expiration of the original term, it
appears that the foreign patent has already expired, no
prolongation of the term of the American patent can be permitted.
This is in accordance with the letter and spirit of the enactment.
The intention of Congress obviously was to obtain for this country
the free use of the inventions of foreigners as soon as they became
free abroad. This is indicated by the use of the phrase 'first
patented or caused to be patented in a foreign country,' for it was
presumable that American citizens would obtain their first patent
here, while a foreigner would first patent his invention in his own
country. The statute was designed to prevent a foreigner from
spending his time and capital in the development of an invention in
his own country and then coming to this to enjoy a further monopoly
when the invention had become free at home. The result of such a
course would be that while the foreign country was developing the
invention and enjoying its benefits, its use could be interdicted
here, while if the term of the monopoly could be further extended
here, the market could be controlled long after the foreign nation
was prepared to flood this country with the unpatented products of
the patented process. It appears in this case that under the
Bessemer patents, assisted by the Mushet process, English
manufacturers have been enabled to send to this country 100,000
tons of steel railroad iron, against 10,000 tons manufactured here.
If now, when both patents are free to all English manufacturers,
the American manufacturer must pay a royalty for those inventions,
he is immediately placed at a disadvantage as compared with his
foreign competitor, and this by the act of the patentee either in
neglecting to obtain that extension abroad, for which he sues in
this country or by devoting his time during the original term to
the development of the invention abroad to the neglect of the
American field."
Com.Dec. (1870) 106, 108.
A like ruling was made October 6, 1870, in the
Case of
Ward, an American inventor. Com.Dec. (1870) 126.
Page 157 U. S. 28
In
Boyer's Case, decided October 25, 1870, which was an
application for the extension of letters patent granted November 4,
1856, to one Evans for an improvement in spading machines, it
appears that Evans obtained letters patent in England, dated
December 17, 1855, sealed May 27, 1856, and which expired December
17, 1869. The commissioner, referring to section 25 of the act of
1870, said:
"In the case of Mushet, it was a foreign inventor, and in the
case of Ward an American inventor, who were seeking the extension,
but in both cases, letters patent were first obtained in the
foreign country. . . . I was and am of the opinion that the policy
which Congress plainly declares in this section is that if a
foreigner obtains a patent in his own country and permits it to
expire there, it shall also expire in this country, so that the
right to use the invention without liability to the inventor shall
be simultaneous in this and in the most favored foreign nation.
Therefore, while I held that the section did not shorten the term
of patents already granted, I also held that it did prevent the
extension of such patents when the original term expired. It would,
I conceive, be a manifest impropriety to grant to a patentee seven
additional years of protection when the fact has been brought home
to me that he first patented his invention abroad and that his
foreign patent has expired. Whether the section in question does or
does not actually forbid the extension, it so clearly declares that
the American patent shall not survive the death of the prior
foreign patent that a decent respect for the declared policy of the
legislature would determine an officer, while exercising his
discretion, to exercise it in accordance with that policy, and not
in opposition to it. It is urged, however, that Congress intended
only to reach the case of the foreign inventor who first patented
his invention in his own country, and that they did not intend to
put the American inventor, who obtained a patent abroad, in a worse
position than if he had obtained no patent at all in a foreign
country. It is said with much force that if the American patentee
had not obtained an English or French patent, the invention would
be free in those countries, even during the lifetime of his
original patent, and that the fact
Page 157 U. S. 29
that it was free there would be no bar to the grant of an
extension. This may be true, but we have no means of judging of the
intention of Congress in this case except by the language employed
in the declaration of their will. The language of the statute is
'first patented, or caused to be patented, in a foreign country.'
This, by its terms, includes American citizens as well as
foreigners who
first take out a patent abroad. The term
'patented' may well be construed as applying to foreigners
obtaining patents in their own country, and the phrase 'caused to
be patented' to such persons, not citizens of the same country,
including Americans, as should cause their inventions to be
introduced or patented there. It does not include either foreigners
or citizens who first obtain their patents in this country. It was
supposed that American inventors would first obtain their patents
here, in which case they would not have been within the terms of
the section; but if, on the other hand, they choose to obtain
patents abroad before doing so in their own country, they were to
be placed upon the same platform as the foreign patentee. It is
reasonable to suppose that the inventor will follow up his earliest
patent with the greatest vigor, and that, other things being equal,
he will protect his invention first in that country where he
expects to make most use of it. If, therefore, the American
inventor chooses to exhibit this preference for a foreign country
and to give them the first information respecting his invention and
the earliest opportunity of using it, the law makes no distinction
between him and the foreign inventor who obtains his first patent
at home."
Com.Dec. 1870, pp. 130, 131.
In the
Case of Smith and Skinner, decided October 26,
1870, the Commissioner said:
"In the
Cases of Ward and Boyer, I held that the grant
of a foreign patent before the issue of an American patent was
fatal to the application for the extension of the American patent
if the foreign patent expired before the original term of the
patent sought to be extended. It is immaterial whether the American
patent was applied for before the foreign patent or not. This was
important under the first laws, but no such distinction exists
under the act of
Page 157 U. S. 30
1870. This invention was patented in England, France, and
Belgium on October 17, 1856, prior to the grant of the American
patent, and the English patent had already expired. This point is
fatal to the present application."
Com.Dec. (1870) p. 131.
We have not been referred to any ruling of the Patent Office,
after the passage of the act of 1870, in conflict with or different
from that of Commissioner Fisher, except one made by Commissioner
Paine in 1880. But in reference to the latter ruling, and the
construction of the act of 1870, under which the Commissioner of
Patents had uniformly proceeded, Commissioner Marble, in a letter
to the Secretary of the Interior under date of March 17, 1882,
said:
"As will be seen by Col. Mason's communication, the construction
now put upon the statute is the construction which it has received
since it was enacted, except during a short interval of the term of
my predecessor, Mr. Commissioner Paine. I may state, however, that
Mr. Commissioner Paine addressed to me a letter within one month
after he had retired from office, stating that he believed his
construction of section 4887 was erroneous."
It is appropriate now to inquire as to the course of judicial
decision upon the question before this Court.
That question was directly presented in
Bate Refrigerating
Co. v. Gillett, 13 F. 553, 555, which case related to the
patent here involved. Bate's application in Canada having been made
after his application in this country, and the Canadian patent
having been issued before the American patent was issued, the
principal question was whether the invention was patented in Canada
previous to the issuing of the patent in the United States in the
sense in which the words "previously patented" were used in section
4887 of the Revised Statutes.
Referring to that section, Judge Nixon said:
"The phraseology here used materially differs from the previous
legislation on the subject. The power of the Commissioner of
Patents is defined and abridged. Where a foreign patent has been
granted for the same subject matter, he is expressly required to
limit the term of the domestic patent to the period of time
Page 157 U. S. 31
that the foreign patent has to run, or, if there be more than
one, then to make it expire at the same time with the one having
the shortest term. We do not see how any language could have been
employed that would more clearly express the legislative design
that the life of the domestic patent should expire with the term of
any outstanding foreign patent. But the counsel for the complainant
contended on the argument that the present case did not fall within
the limitation of the statute, because the application for the
United States patent was filed antecedent to the application for or
the grant of the Canadian patent. We are at a loss to understand
what the time of filing the application for the patent has to do
with the matter. It is true that the eighth section of the act of
1836 and the sixth section of the act of 1839 made the date of
filing the specifications and drawings, in the one case, and the
date of the application of the home patent, in the other, the point
of time from which to reckon the six months intervening between the
issue of the foreign and domestic patent. It is also true that, by
section 4886 and the first clause of section 4887 of the Revised
Statutes, an inventor is required to file an application for his
patent within two years after his invention or discovery has been
in public use or on sale, from all of which the late Commissioner
of Patents (Paine) was led to the opinion that the word
'previously,' used in the last clause of section 4887, had
reference to the time prior to the filing of the application,
rather than to the time prior to the granting of the patent.
See 17 O.G. 330. But this seems to be wresting the
language of the section from its plain and obvious meaning, and we
are not able to follow the reasoning by which such an
interpretation is reached."
This decision was followed in
Gramme Electrical Co. v.
Arnoux Electric Co., 17 F. 838, 840 (1883), which turned upon
the construction of section 25 of the act of 1870. One of the
questions in that case was whether an American patent, dated
October 17, 1871, and the application for which was made August 17,
1870, was limited, as to its term, by the term of an Austrian
patent issued
after the American
application was
made, but before the American patent was issued.
Page 157 U. S. 32
Mr. Justice Blatchford, referring to section 25 of the act of
1870, said:
"It is contended that under the foregoing provisions [patent]
No. 120,057 expired either on December 30, 1871, or on December 30,
1880, the date of the expiration of the Austrian patent,
accordingly as that patent is to be regarded as a patent for one
year or for ten years. To this the plaintiff replies that the
application for No. 120,057 was filed before the application for
the Austrian patent was filed. But the date of the application for
No. 120,057 cannot affect the question. Under the act of 1870, a
patent takes effect from the time when it is granted, and cannot be
antedated. The meaning of section 25 of the act of 1870 is that the
United States patent shall expire at the same time with the foreign
patent having the shortest time to run which was granted before the
United States patent was granted, and not that it shall expire at
the same time with the foreign patent having the shortest time to
run which was granted before the time when the application for the
United States patent was made.
Bate Refrigerating Co. v.
Gillett, 13 F. 553."
There is nothing in the opinion delivered by Mr. Justice
Blatchford which in our judgment justifies the suggestion that he
felt constrained by principles of comity to follow the decision of
Judge Nixon without considering the question upon its merits. He
seems to have expressed his mature judgment as to the scope and
meaning of the act of 1870.
The case of
Bate Refrigerating Co. v. Gillett came
before Mr. Justice Bradley at the circuit in 1887, and what he said
is reported in 31 F. 809. Referring to the construction given by
Judge Nixon to section 4887, he observed that if the question were
an open one, he would have some hesitation, as it was one of
considerable doubt. Expressly stating that he had not come to any
decided conclusion on the subject, he declined, while sitting at
the circuit, to modify the decision of Judge Nixon, and gave to it
full effect. This Court would undoubtedly attach great value to the
deliberate judgment of Mr. Justice Bradley upon the question now
before it -- indeed, upon any question.
Page 157 U. S. 33
In
Edison Electric Light Co. v. U.S. Electric Lighting
Co., 35 F. 134, 137-138 (1888), the subject was carefully
considered by Judge Wallace. In that case, which was a suit for the
infringement of a patent, he said, after quoting section 4887:
"The real inquiry is whether the section limits the term of a
domestic patent to the term of a foreign patent when the
application for the foreign patent is not made until subsequent to
the application in this country, but the foreign patent issues
before the domestic patent. If it were proper to treat this
question as an original one, it would be necessary first to inquire
whether there is any ambiguity in the language of the statute. If
there is not, the duty of the court is to give effect to its
obvious meaning, notwithstanding it may be thought to make an
unreasonable and harsh innovation upon the preexisting privileges
of our own inventors. It is not only the safer course to adhere to
the words of a statute, construed in their ordinary import, instead
of entering into any inquiry as to the supposed intention of
Congress, but it is the imperative duty of the court to do so.
Where the meaning of the Revised Statutes is plain, the court
cannot look to the sources of the revision to ascertain whether
errors have or have not been committed by the revisers.
United
States v. Bowen, 100 U. S. 508. There is no
practical difference in the phraseology of section 4887 and that of
section 25 of the Act of July 8, 1870, from which the section is
reproduced."
Referring to the above cases at the circuit, he remarked that
the question should not be considered as an original one.
In
Bate Co. v. Hammond, 35 F. 151, Judge Colt followed
the decision in
Bate Co. v. Gillett. And a like ruling was
made by Judge Coxe in
Accumulator Co. v. Julien Electrical
Co., 57 F. 605.
In view of this history of the question presented by the
certificate of the circuit court of appeals, what is the duty of
this Court? In
Andrews v. Hovey, 124 U.
S. 694,
124 U. S. 717,
it was said that the construction of a statute of the United States
concerning patents for inventions cannot be regarded as judicially
settled when it has not been so settled by the highest judicial
authority which can pass judgment upon the
Page 157 U. S. 34
question. "Nor," the Court further said,
"is this a case for the application of the doctrine that, in
cases of ambiguity, the practice adopted by an executive department
of the government in interpreting and administering a statute is to
be taken as some evidence of its proper construction. The question
before us as to the validity of a patent by reason of preexisting
acts or omissions of the inventor, of the character of those
involved in the present case, is not a question of executive
administration, but is properly a judicial question. Although it
may be a question which, to some extent, may come under the
cognizance of the Commissioner of Patents in granting a patent,
yet, like all the questions passed upon by him in granting a patent
which are similar in character to the question here involved, his
determination thereof, in granting a particular patent, has never
been looked upon as concluding the determination of the courts in
regard to those questions respecting such particular patent, and,
a fortiori, respecting other patents."
The appellant therefore properly insists that the determination
of the present question shall not be deemed absolutely concluded
either by the practice that has obtained in the Patent Office since
the passage of the act of 1870 nor by decisions in the inferior
courts of the United States.
If section 4887 of the Revised Statutes is so worded as to
express clearly the intention of Congress, the court must give
effect to that intention. But even if the statute be not so
explicit as to preclude construction, if upon applying to it the
established rules of interpretation, if looking at it in the light
of previous legislation on the subject, if there be reasonable
ground for adopting either one of two constructions, this Court,
without departing from sound principle, may well adopt that
construction which is in harmony with the settled practice of the
executive branch of the government and with the course of judicial
decisions in the circuit courts of the United States, especially if
there be reason to suppose that vast interests may have grown up
under that practice and under judicial decisions, which may be
disturbed or destroyed by the announcement of a different rule.
Page 157 U. S. 35
Looking at the words of the statutes referred to, neither unduly
enlarging nor unduly restricting their meaning, we are of opinion
that Congress intended by the twenty-fifth section of the act of
1870, preserved in section 4887 of the Revised Statutes, to
introduce a new test in respect of the term of an American patent
where the same invention was the subject of a foreign patent
previously issued. It has already been observed that the statutes
relating to patents show upon their face that Congress always had
in mind the difference between an application for a patent and the
patent itself. And that difference is apparent in the act of 1870.
We find there the words "application," "patent," "patented," "first
patented," and "caused to be patented."
The inventor whom the act of 1839 was designed to protect was
one whose invention had not been introduced into public and common
use in the United States prior to his application for an American
patent, and which had been "patented in a foreign country more than
six months prior to his application." In reference to an American
patent granted under those circumstances, that act expressly
declared that it should be limited to fourteen years -- not, let it
be observed, from the date of the American patent, but from the
date or publication of the foreign letters patent.
The act of 1870 provided for the case of an inventor whose
invention had not been introduced into public use in the United
States for more than two years prior to his application, but which
had been "
first patented or caused to be patented in a
foreign country." In such a case, that statute expressly provided
that the American patent should expire with the foreign patent
having the shortest term to run.
The case provided for by section 4887 of the Revised
Statutes
Page 157 U. S. 36
is the same as that provided for by the twenty-fifth section of
the act of 1870, and the words, "first patented, or caused to be
patented, in a foreign country," in the first clause of that
section, are emphasized by the words in the succeeding clause,
"previously patented" in a foreign country.
We cannot superadd, in section 4887 of the Revised Statutes, the
words "prior to the application" either after the words "first
patented, or caused to be patented, in a foreign country" or after
the words "previously patented in a foreign country" without
defeating the intention of Congress as manifested by the language
it selected to indicate its purpose. And the express command of the
existing statute is that every American patent for an invention
"previously patented in a foreign country" -- that is, "first
patented, or caused to be patented, in a foreign country" -- shall
expire at the same time with the foreign patent. No words are sued
that will justify the court in holding that an invention patented
in a foreign country before being
patented here is to be
exempt from the operation of the provision limiting the term of the
American patent to expire with the foreign patent.
Was the Bate invention patented abroad before it was patented in
this country? If so, the American patent expired with the foreign
patent, and thereby the American public became entitled to use the
invention from the time the foreign public were permitted to use
it. Congress in effect, by the existing law, says to an inventor
seeking to enjoy the exclusive use in this country of his invention
for the full term prescribed by law:
"If your invention has not been introduced into public use in
the United States for more than two years, you may, upon complying
with the conditions prescribed, obtain an American patent, and you
may, if you can, obtain a foreign patent. But the American patent
will be granted on the condition that if you obtain the foreign
patent first, your invention shall be free to the American people
whenever, by reason of the expiration of the foreign patent, it
becomes free to people abroad; but in no case shall the term of the
American patent exceed seventeen years."
This we deem to be a sound interpretation of the statute, giving
to the words used the meaning required by their ordinary
signification.
In our judgment, the language used is so plain and unambiguous
that a refusal to recognize its natural, obvious meaning would be
justly regarded as indicating a purpose to change
Page 157 U. S. 37
the law by judicial action based upon some supposed policy of
Congress. But, as declared in
Hadden v.
Collector, 5 Wall. 107,
72 U. S.
111:
"What is termed the policy of the government with reference to
any particular legislation is generally a very uncertain thing,
upon which all sorts of opinions, each variant from the other, may
be formed by different persons. It is a ground much too unstable
upon which to rest the judgment of the court in the interpretation
of statutes. . . . Where the language of the act is explicit,"
this Court has said,
"there is great danger in departing from the words used, to give
an effect to the law which may be supposed to have been designed by
the legislature. . . . It is not for the Court to say, where the
language of the statute is clear, that it shall be so construed as
to embrace cases because no good reason can be assigned why they
were excluded from its provisions."
Scott v. Reid,
10 Pet. 524,
35 U. S.
527.
Undoubtedly the court, when endeavoring to ascertain the
intention of the legislature may be justified in some circumstances
in giving weight to considerations of injustice or inconvenience
that may arise from a particular construction of a statute.
Wilson v.
Rousseau, 4 How. 646,
45 U. S. 680;
Bloomer v.
McQuewan, 14 How. 539,
55 U. S. 553;
Nat. Blake v.
Banks, 23 Wall. 307,
90 U. S. 320;
United States v.
Kirby, 7 Wall. 482,
74 U. S. 486.
It is therefore said that the time ordinarily intervening in other
countries between the filing of an application and the granting of
a patent is very short in comparison with the time ordinarily
consumed in this country in obtaining a patent after the inventor
has filed his application in the Patent Office, and, consequently,
the statute -- if construed as we have indicated its words
reasonably require -- might operate to the injury of an American
inventor in that he will be deprived of so much of the statutory
term of his American patent as will be in excess of the term of any
foreign patent previously obtained for the same invention. If the
statute, thus construed, does not give to the inventor all the
benefits he would like to have, the remedy is with another
department of the government, and it is not for the courts to
tamper with the words of a statute or by a strained construction
of
Page 157 U. S. 38
legislative enactments the language of which is clear and
explicit to accomplish results not contemplated by Congress. This
Court, speaking by Chief Justice Marshall in
United
States v. Fisher, 2 Cranch 358,
6 U. S. 385,
said that where the meaning of the legislature was plain, "it must
be obeyed."
Besides, the principle that limits an American patent to expire
with a previous foreign patent covering the same invention was not
first introduced by the act of 1870. It appears in the act of 1839,
for it is there expressly declared that the American patent which
the inventor shall not be debarred from receiving by reason of the
invention having been patented in a foreign country more than six
months prior to his application in this country "shall be limited
to fourteen years
from the date of publication of such foreign
letters patent." While that act was in force, the term
prescribed for an American patent was fourteen years. And yet,
according to its provisions, that time -- if the inventor had a
foreign patent antedating his American application by more than six
months -- was to be computed not from the date of the American
patent, but from the date or publication of the foreign patent.
That principle is preserved in the existing law, for under the
Revised Statutes, as under the act of 1870, if there be an American
patent for an invention previously patented abroad, the former
expires not, it is true at the expiration of any given number of
years, as under the act of 1839, but at the time the foreign patent
expires.
It is also said that the United States promised the inventor,
when making his application, to give him a patent for the full term
of seventeen years from the date of his patent if, upon
examination, it was found that he was entitled to one
at the
time of such application, and consequently that a curtailment
of that term by reason of something occurring after the filing of
the application, and for which he may not be responsible, is
inconsistent with good faith upon the part of the government. Of
course, this Court would hesitate to accept any construction of an
act of Congress that would imply bad faith upon the part of the
government. But the contention just referred to assumes the very
matter in dispute. It assumes
Page 157 U. S. 39
that the promise to the inventor was not accompanied by
conditions authorizing the government to limit the term of its
patent to some period less than seventeen years from its date. But
if the promise to issue a patent is made with the reservation in
the statute containing the promise that the patent, when issued,
shall be limited to expire with any foreign patent previously
issued for the same invention, then there is no basis for the
suggestion that the enforcement of that condition violates any
promise made to the inventor.
Another suggestion in behalf of the plaintiff is that, in the
case of a revision of statutes, neither changes of phraseology nor
a different arrangement of clauses in themselves show an intention
to change or alter the existing law; that the new law should be
held to mean what the prior law meant, unless a purpose to change
or alter is manifested by clear, unambiguous language, and that, in
the interpretation of any particular part of a revision, resort may
be had to the previous law on the subject, whenever the revisers
have not, in explicit language, disclosed their meaning. The
circumstances under which the courts may look at prior laws for
which a revision has been substituted are stated in
United
States v. Bowen, 100 U. S. 508,
100 U. S. 513.
That case depended upon the construction to be placed upon certain
sections of the Revised Statutes. Mr. Justice Miller, speaking for
the Court, said:
"The Revised Statutes must be treated as the legislative
declaration of the statute law on the subjects which they embrace
on the first day of December, 1873. When the meaning is plain, the
courts cannot look to the statutes which have been revised to see
if Congress erred in that revision, but may do so when necessary to
construe doubtful language used in expressing the meaning of
Congress."
This principle was reaffirmed in
Victor v. Arthur,
104 U. S. 498;
Deffeback v. Hawke, 115 U. S. 392,
115 U. S. 402;
Cambria Iron Co. v. Ashburn, 118 U. S.
54,
118 U. S. 57;
United States v. Lacher, 134 U. S. 624,
134 U. S. 627.
For the reasons already stated, the principle announced in the
cases just cited cannot avail the plaintiff if the existing statute
is interpreted to mean what its words import according to their
natural signification, for the words used in section
Page 157 U. S. 40
4887 of the Revised Statutes, as well as those in section 25 of
the act of 1870, clearly evince the purpose of Congress to so
curtail the term of an American patent (where the same invention is
previously patented abroad) that it will expire at the time the
foreign patent expires, even if the latter was applied for and
granted after the filing of the American application, but before
the American patent issues.
But it is confidently asserted that the proceedings in Congress
relating to the bill which, after numerous amendments, became the
act of 1870 show that Congress did not contemplate any such change
in the law as is involved in the construction we have placed on the
twenty-fifth section of that act.
It appears that the revisal of the statutes relating to patent
and copyrights was reported to the House of Representatives by the
commissioners appointed under the act of 1866, and was referred
first to the house committee on revision of the laws of the United
States, and afterwards to the house committee on patents, of which
Mr. Jenckes was chairman.
The different forms in which the section now in controversy
appeared prior to the passage of, as well as in, the act of 1870,
are thus indicated:
image:a
Page 157 U. S. 41
image:b
Now it is true that according to the report in the congressional
Globe of the proceedings in the House of Representatives, Mr.
Jenckes said, when reporting that bill from the committee on
patents, that the report of the revisers had been examined by the
house committee on revision of the laws of the United States and
"found to embody all the provisions of existing law in brief,
clear, and precise language." Congr.Globe, 41st Cong., 2d Sess.,
Part 3, vol. 99, p. 2679. And it is claimed that other observations
made by Mr. Jenckes on the same occasion tend to show that in his
opinion the bill as reported by the revisers did not change the
prior law.
These considerations, it is supposed, should have controlling
weight in our interpretation of the act as it finally passed. We
cannot assent to this view. If the act of 1870 was nothing more
than a revision or consolidation of previous statutes on the same
subject, there would be much greater force in the plaintiff's
contention than there appears to be. But that act made numerous
changes in the previous statutes, some of them of considerable
importance. The Congress that passed the act of 1870 was not
restricted to mere revision or consolidation, even if the act of
1866 be construed as contemplating only the revision and
consolidation of previous statutes without material change. But
whatever may have been the scope of the act of 1866, the purpose in
the act of 1870 to go beyond revision and to amend the existing
statutes is manifest from the title of that act and from the bill
that came from the house committee on patents. When that bill as it
passed the house reached the Senate, various amendments were made
in that body. And upon the face of the act as it finally passed,
there are such alterations
Page 157 U. S. 42
of the prior law as to impose upon this Court the responsibility
of determining the effect of such alterations. We cannot accept as
controlling, much less conclusive, the opinion of the house
committee on the revision of the laws of the United States, as
reported by Mr. Jenckes, that the bill it reported embodied only
the existing law. Nor can we assume that the House of
Representatives, much less the Senate, based their action upon the
opinion of individual members of the house as to the scope and
legal effect of report of the revisers. Comparing the bill reported
by the revisers and the bill reported by the house committee on
patents with the act as it passed, we find it impossible to sustain
the view taken by the plaintiff.
It is quite true, as the plaintiff contends, that Congress did
not intend by the act of 1870 to upturn the entire policy of the
government in reference to patents, but beyond all question its
final action shows that it made and intended to make important
amendments of existing laws.
The revisers as well as the house committee on patents proposed
that it should be a condition of the protection of an American
patent, where the same invention had been first patented in a
foreign country, that the invention should not have been introduced
into public use in the United States "prior to the application."
The bill as it passed Congress made it a condition that the
invention should not have been introduced into public use in this
country "for more than two years prior to the application."
The revisers proposed that the patent should run seventeen years
from the date or publication of the foreign patent, whereas, the
house committee on patents proposed, and it was so declared in the
act as passed, that the American patent should in no case be in
force beyond seventeen years, and should "expire at the same time
with the foreign patent, or, if there be more than one at the same
time with the one having the shortest term."
The revisers, the house committee on patents, and Congress all
had in view the rights of the inventor at the time when he was to
receive or be debarred from receiving a patent for his invention,
and not his apparent rights at the date of his
Page 157 U. S. 43
application. Hence, the words, "by reason of the same having
been patented in a foreign country more than six months prior to
his application," as found in the act of 1839, were changed in the
report of the revisers and in the report of the original bill
presented by the house committee on patents, so as to read, "by
reason of his having first patented it in a foreign country."
We cannot adjudge that the words "more than six months prior to
his application" in the act of 1839 were carelessly dropped, or
that Congress did not have in mind the difference between a clause
declaring that an inventor should not be debarred from receiving a
patent for his invention "by reason of the same having been
patented in a foreign country more than six months prior to his
application" and a clause declaring that he should not be so
debarred "by reason of its [the invention's] having been first
patented or caused to be patented in a foreign country." We have no
authority to add to the clause last quoted the words, "prior to his
application." To do so would be to legislate, and not to interpret
and give effect to the statute as passed by Congress.
Much has been said about the intention of Congress, as
manifested by its legislation, to deal liberally with inventors,
especially those who were citizens of the United States. This is
true. But it is for Congress to prescribe the conditions upon which
it will secure to inventors the exclusive right to their
inventions. What may be due to inventors is a matter about which
there may well exist differences of opinion. It is the province of
the legislative branch of the government to say when a patent to an
inventor shall expire, and therefore when the public may enjoy
without charge the benefit of the invention covered by it. We can
very well understand how the existing statute may in some
circumstances operate injuriously to an American inventor who, in
addition to the exclusive rights granted to him in this country for
the term of seventeen years, wishes to secure a monopoly for his
invention in other countries, for if he obtains foreign patents for
his invention before obtaining one here, the American patent is
limited by law, whether it is so expressed or not in the patent
itself,
Page 157 U. S. 44
to expire with the foreign patent having the shortest term. This
is the case as it appears from the standpoint of the patentee,
without regard to the interests of the American public.
But it is to be remembered -- at least it may be assumed that
Congress was advised -- that action by the Patent Office upon
applications for patents was often unduly and purposely delayed by
applicants until they could reap the full benefit of the monopoly
obtained by them in foreign countries before taking out an American
patent. "In the meantime," the Commissioner of Patents, in his
annual report as late as 1887, said,
"they [applicants for American patents] are engaged in
manufacturing and putting upon the market the article or
improvement, but warning the public that the patent is applied for
the effect of which is to give them the absolute control and
monopoly of the invention and to deter all other inventors from
entering upon the same field of invention and from manufacturing
the article."
We need not say whether these considerations were or were not
sufficient to induce the change first made by the twenty-fifth
section of the act of 1870 and perpetuated in the existing statute.
They are referred to only as showing what Congress may have had in
view when it provided, as it did, that an invention covered by a
foreign patent, obtained or caused to be obtained before an
American patent is granted for the same invention, should be free
to the American public as soon as it became by reason of the
expiration of the foreign patent free to the people of other
countries. If this principle operates harshly upon inventors in
certain cases, it is for Congress, whose discretion is not subject
to judicial control, to make provision for those cases if it be
possible to do so without such injury to the people of our country
as ought not to be inflicted upon them.
And it may be stated in this connection that Congress allowed
the twenty-fifth section of the act of 1870 to stand although the
Commissioner of Patents, immediately after the passage of that act,
ruled that it had changed the prior law so as to limit an American
patent to expire at the same time
Page 157 U. S. 45
with the foreign patent of the shortest term covering the same
invention and issued before the American patent, although after the
application therefor was made. If, as is insisted, the change was
not intended, and was effected only by words incautiously used, or
not used with any purpose to introduce a new rule for the
limitation of the term of an American patent, some action upon the
subject, it may well be assumed, would have been taken by Congress
after the passage of the act of 1870.
The Revised Statutes of 1874 were adopted, it must be presumed,
with the knowledge on the part of Congress of the construction
previously placed by the Patent Office upon the twenty-fifth
section of the act of 1870. This presumption is strengthened by an
examination of the Act approved February 18, 1875, entitled "An act
to correct errors and to supply omissions in the Revised Statutes
of the United States." 18 Stat. 316, c. 80. That act, upon its
face, shows that the entire revision of 1874, after it took effect,
was carefully reexamined for the purpose of ascertaining whether
there were errors or omissions in the work of revision. Now it is
inconceivable that the difference in the wording of the
twenty-fifth section of the act of 1870 or of section 4887 of the
Revised Statutes, when compared with the act of 1839, could have
escaped the attention of Congress, especially as the act of 1870
had been interpreted as introducing a new rule in respect of the
term of an American patent where the same invention was covered by
a foreign patent previously issued. The act of 1875, for the
purpose of correcting errors and omissions, amended or repealed
nearly seventy sections of the Revised Statutes. Still further, as
an examination of the statutes will show, since the Revised
Statutes went into operation, nearly eight hundred sections other
than those referred to in the act of 1875 have been amended or
repealed. But no amendment has ever been made of section 4887.
The rule prescribed by the twenty-fifth section of the act of
1870 having been reproduced in section 4887 of the Revised
Statutes, and the latter section never having been amended, we
ought not, after the lapse of nearly twenty-five years from
Page 157 U. S. 46
the passage of the act of 1870, place upon its twenty-fifth
section, or upon section 4887 of the Revised Statutes, which took
its place, any interpretation other than that which the ordinary,
natural meaning of their words import.
Our answers therefore to the questions certified are that:
Under the facts stated, the invention for which the United
States patent to Bate was issued was "previously patented in a
foreign country" within the meaning of those words in section 4887
of the Revised Statutes, and the United States patent expired,
under the terms of that section, before the expiration of seventeen
years from its date, and it is so certified to the circuit court of
appeals.