after stating the case, delivered the opinion of the court.
It is well settled by a long series of adjudications that, to give this court jurisdiction by writ of error to a state court, it must appear affirmatively, not only that a federal question was presented for decision to the highest court of the State having jurisdiction, but that its decision was necessary to the determination of the case, and that it was actually decided, or that the judgment as rendered could not have been given without deciding it.
DeSaussure
v. Gaillard,
Now, while the trial court appears to have held the defendant liable upon the ground that it had agreed to use the plaintiff’s device upon all of its machines, and also upon the ground that it had in fact used them, or their mechanical equivalent, it is verv evident from an examination of the opinion of the
*296
general term, which we are at liberty to consult,
Philadelphia Fire Association
v.
New York,
The defence to the case was that the defendant did not make use of the plaintiff’s spring plug, which had a scalloped head, but did make use of an oiler shown in.Webster’s Dictionary, which was practically the same, excépt that it did not. have a scalloped head, its contention being that the scalloping' of the head was immaterial and useless, and that the device so far as it was useful had been anticipated. But the referee found that, by accepting the license and agreeing to,use the plaintiff’s patented device, the defendant was estopped to deny the validity of the patent to the full extent of its claim, and if, as he found, the defendant made use of the device set forth in the claim of the patent, or its mechanical equivalent, it was liable, though in an action for infringement of such claim, it *297 might have been adjudged invalid. Hut, as before stated, the general term found it unnecessary to determine whether the defendant had actually made nse of the device or its equivalent, and held it to be liable upon the ground that it had agreed to use it upon all ■ its machines, and was, therefore, bound to pay its value as fixed by the referee.
It does not appear upon what ground the Court of Appeals proceeded in affirming this judgment, but as the case might properly have been determined upon a ground broad enough to support the judgment without resort to a federal question, this court has no jurisdiction.
Beaupré
v. Noyes,
The writ of error must, therefore, be dismissed for wcmt of jurisdiction.
