Mr. Justice SWAYNE stated the case more particularly, and delivered the opinion of the court.
The bill is founded upon a patent, and was filed by the appellant. It charges infringement. Its object and prayer are to have the defendant enjoined from infringing further, and required to account for the profits he has wrongfully made.
The original patent was issued to the complainant on the 5th of April, 1853. On the 28th of March, 1867, it was extended for seven...
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