Gates v. United States

The special jurisdictional act set out in Finding 1 enables the plaintiff to sue in this court for an alleged infringement of his patent rights. Plaintiff obtained letters patent on July 11, 1911, for an improvement in steam pumps, confined to the valve mechanism of such pumps. The detail of construction andt successful functioning of the device is accurately described in Findings 4 and 12. We find the patent valid and that it has been infringed by the defendant.

The crucial issue in the case is not confined to the issues of the validity and infringement of the patent in suit. The plaintiff…