Lorraine Corp. v. Union Tank & Pipe Co.

RUDKIN, Circuit Judge.

This is an appeal from a final decree dismissing a suit for infringement of letters patent. The patents involved are reissue No. 15,220, dated November 8, 1921, being a reissue of patent No. 1,373,684, dated April 5, 1921; also patents Nos. 1,396,880, dated November 15, 1921, 1,577,917, dated March 23, 1926, and 1,620,771 dated March 15, 1927. These several patents were issued to David G. Lorraine, and by him assigned to the Lorraine Corporation, the appellant here.

Speaking generally, the patented device in controversy is an apparatus, or gas trap, employed for the…