General Electric Co. v. Wabash Appliance Corp.

Petitioner, General Electric Company, brought this patent infringement suit based on Pacz Patent No. 1,410,499, relating to a tungsten filament for incandescent lamps. The patent, issued March 21, 1922, on an application filed February 20, 1917, contains. process and product claims; only the latter are here involved. The District Court for Eastern New York held claims 25, 26 and 27 valid and infringe'd, and gave petitioner a decree for an, injunction and accounting. 17 F. Supp. 901. The Court of Appeals for the Second Circuit held that petitioner’s product was anticipated by filaments…