The alleged invention protected by letters patent No. 50,591,
granted October 24, 1865, to John H. Irwin, was a combination of
old devices, each performing its old function and working out its
own effect, without producing anything novel as the result of the
combination, and was not patentable.
When the sole issue in an action for the infringement of a
patent is as to the patentable character of the alleged invention,
it is not error to decline to instruct the jury that the fact that
the machine had practically superseded all others was strong
evidence of its novelty.
The case is stated in the opinion.
MR. JUSTICE FIELD delivered the opinion of the Court.
This is an action to recover damages for the alleged
infringement of a patent for an improvement in lanterns, granted
to
Page 141 U. S. 540
John H. Irwin in October, 1865, and assigned to the plaintiff in
October, 1874. It was brought in the Circuit Court of the United
States for the Southern District of Ohio. The plaintiff is a
citizen of Illinois, and the defendant is a corporation formed
under the laws of Ohio.
Previous to the invention claimed, lanterns were in use
constructed in a similar manner to the one upon which the alleged
improvement is made. They had a like metallic bottom and top, a
glass globe, and a guard formed of upright wires attached to rings
at the top and bottom, the guard, bottom, and top forming together
something like a basket, into which the lamp with a glass chimney
was placed, the glass protecting the flame from the wind, and the
wire guard protecting the glass from injury by collision. The
lantern was carried by means of a swinging bail, connected with the
guard or the top. The lamp, placed inside of the globe, rested on
the bottom of the lantern, which was so connected with the lower
ring of the guard that it could be detached and removed when the
lamp was to be trimmed or filled or the chimney to be cleaned. The
top of the lantern also aided in securing the globe in place.
To a lantern of this kind Irwin added his alleged improvement.
In his patent, he states that what he claimed was "securing a
removable lantern top to the upper part of the guard, substantially
as therein specified and described." And in his specification he
says that the invention
"consists in attaching the metallic top of the lantern, in which
the top of the glass globe or protector enters and by which it is
held in place by a hinge, to the upper part of the wire guard
surrounding the globe and securing it at the side opposite said
hinge by a removable fastening or spring catch, so that by
detaching said catch from the said upper part of the lantern guard,
the top of the lantern may be thrown back, opening upon the
aforesaid hinge, thus enabling the globe to be removed, or for any
other purpose."
The terms "removable fastening" or "spring catch," as observed
by counsel, cover every conceivable device applicable to lanterns,
and adapted to connect one edge of the lid with
Page 141 U. S. 541
the top of the lantern or guard, or to disconnect it. It was
simply the application to the ordinary lantern of a lid secured by
a hinge on one side, and by any kind of locking device on the
opposite side. An invention having no greater extent than this was
not deemed by the defendant as possessing any virtue deserving a
patent. It consisted simply in the use of a hinge and a catch
instead of two equivalent fastenings generally employed before, and
only possessed this merit -- that by the use of the hinge, the
cover could not be separated and lost in case the catch on the
other side should, from any cause, become unfastened. So that the
alleged invention only amounted to securing a lid to a lantern by
means of a catch on one side and a hinge on the other.
The plaintiff in his declaration alleges that this invention was
of great utility, and was extensively introduced into public use,
and generally acquiesced in. The defendant in his general and
special pleas alleged first that the supposed invention of Irwin
did not, in view of the state of the art, require the exercise of
the inventive faculty, but only mechanical skill and good judgment;
second, that it was not for a patentable combination of parts, but
only for an aggregation of old and well known parts, each of which
performed only its old and well known function unchanged by the
combination; third, that at the time Irwin filed his application,
there was pending in the Patent Office another application for the
same invention in the name of one Duburn, upon which application a
patent was afterwards issued, and fourth, that the said supposed
invention had been patented, or described in printed publications
or patents, prior thereto.
On the trial, special questions were submitted to the jury, and
they found that the Irwin patent disclosed no improvement which
required invention, as distinguished from mere mechanical skill or
judgment; that the invention claimed had been patented or described
in previous publications; that Irwin was not the original or first
inventor or discoverer of any material or substantial part of the
thing patented, and that the defendant had not infringed the
alleged patent. Judgment was accordingly entered for the defendant
in the action.
Page 141 U. S. 542
We do not perceive that in the rulings of the court any
substantial error was committed. The elements combined to form the
alleged invention merely constituted an aggregation of old devices,
each working out its own effect, without producing anything novel,
and such an assemblage or bringing together of old devices, without
securing some new and useful result as the joint product of the
combination -- something more than a mere aggregation of old
results -- does not constitute a patentable invention.
Hailes v. Van
Wormer, 20 Wall. 353;
Pickering v.
McCullough, 104 U. S. 310.
The court did not therefore err in refusing the instruction
requested, that before the patent could be held invalid by reason
of a prior patent, it was not sufficient to find one of the
elements in one patent, a second in another, and a third in
another. If the patent were for a combination of new or old
elements, producing a new result, such instruction might have been
correct; but as it was merely a new aggregation of old elements, in
which each element performed its old function, and no new result
was produced by their combination, the instruction was not
applicable, and was properly refused.
Nor, under the circumstances, did the court err in declining to
instruct the jury that the fact that the Irwin lantern had
practically superseded all others was strong evidence of its
novelty. The question before the court upon the main issue was not
of the novelty of the invention, but rather of its patentable
character. Where there is no invention, the extent of the use is
not a matter of moment.
We think that all the important questions of fact in the case
were properly submitted to the jury.
The judgment is therefore
Affirmed.