Mr. Chief Justice TANEY delivered the opinion of the court.
Three objections have been taken to the instructions given by the Circuit Court at the trial, and neither of them is, perhaps, entirely free from difficulty.
The first question arises upon the assignment of Fitzgerald to Enos Wilder. The assignment was made and recorded in the Patent-Office before the patent issued. It afterwards issued to Fitzgerald. And the plaintiffs in error insist that this ...
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