Le Roy v. De Vry Corp.

(after stating the facts as above). The existence of equitable jurisdiction does not of itself prove the propriety of granting equitable relief. The line of decisions suggested by this appeal furnishes illustrations of this truth.

Against a general demurrer, we held in Tompkins v. International, etc., Co., 183 F. 773, 106 C. C. A. 529, that there was jurisdiction in equity to entertain — i. e., consider —a bill filed three days before expiration of patent. But it does not follow that, because jurisdiction exists, an injunction should issue, much less that an injunction must issue.

There are…