Brown v. Duchesne - 60 U.S. 183 (1856)
U.S. Supreme Court
Brown v. Duchesne, 60 U.S. 19 How. 183 183 (1856)
Brown v. Duchesne
60 U.S. (19 How.) 183
The rights of property and exclusive use granted to a patentee do not extend to a foreign vessel lawfully entering one of our ports and the use of such improvement in the construction, fitting out, or equipment of such vessel while she is coming into or going out of a port of the United States, is not an infringement of the rights of an American patentee, provided it was placed upon her in a foreign port, and authorized by the laws of the country to which she belongs.
The facts in the case and state of the pleadings in the circuit court are set forth so particularly in the opinion of the Court that they need not be repeated.