Salvage Process Corp. v. Acme Tank Cleaning Process Corp.

CAMPBELL, District Judge.

This suit is brought for the alleged infringement of the following patents:(1) Patent No. 1,405,173, issued to Hervey ■ J. 'Wheeler, assignor to H. 'J. Wheeler Salvage Company, Inc., for pumping apparatus granted January 31, 1922, on an.application filed June 16, 1920,.of which claim 1 is in suit.(2) . Patent No. 1,894,234, issued to Gunnar C. Engstrand, assignor to Sludge Pumping, Inc., for oil pumping apparatus granted January 10, 1933, on an application filed October 20, 1932, of which claims 1 and 2 are in suit.(3) Patent No. 1,964,726, issued to Gunnar C.…