Picard v. United Aircraft Corporation

L. PIAND, Circuit Judge.

Both parties appeal from a judgment in an action to enjoin infringement of claims 2, 3, 4, 5, 11, 14, 15, 16, 17, 18, 19 and 20 of Reissue Patent No. 21,031, originally issued on July 21, 1931, to Martin J. Schenk (No. 1,815,868)', the reissue being granted on March 34, 1939. The district judge held claims 4 and 14 — original claims— valid and infringed; he held claims 2, .3, 5, 11, 15 and 16 — likewise original claims —not infringed; and he held claims 17, 18, 19 and 20 — reissue claims — invalid because broadened over the original claims, and also .because of laches…