District Court, S.D. California May 5, 1965, No. 65-480 (Solenoid Devices, Inc. v. Ledex, Inc.)

BYRNE, District Judge.

On March 26, 1965, Solenoid Devices Inc. filed in this court a complaint for declaratory judgment of patent invalidity against Ledex Inc. Plaintiff alleged that since the summer of 1963, it has been designing, manufacturing and selling certain electro-mechanical devices, among which is a certain rotary solenoid; that on September 15, 1964, a U. S.