Electrical Fittings Corp. v. Thomas & Betts Co.

In a two-claim patent infringement suit, the district court found the plaintiff's claim 1 valid but not infringed, and claim 2 invalid, entering a decree that adjudged claim 1 valid while dismissing the suit for lack of infringement. The defendants, despite winning outright dismissal, appealed the ruling that claim 1 was valid; the Second Circuit dismissed the appeal, reasoning the defendants had already received all the relief to which they were entitled, so there was nothing left for them to appeal.