Fast Heat Element Manufacturing Co., Inc., a Corporation v. Rama Corporation, a Corporation, and Amark Industries, Inc., a Corporation, Fast Heat Element Manufacturing Co., Inc., a Corporation v. Rama Corporation, a Corporation, and Amark Industries, Inc., a Corporation

724 F.2d 802 221 U.S.P.Q. 313 FAST HEAT ELEMENT MANUFACTURING CO., INC., a corporation, Plaintiff-Appellant, v. RAMA CORPORATION, a corporation, and Amark Industries, Inc., a corporation, Defendants-Appellees. FAST HEAT ELEMENT MANUFACTURING CO., INC., a corporation, Plaintiff-Appellant, v. RAMA CORPORATION, a corporation, and Amark Industries, Inc., a corporation, Defendants-Appellees. Nos. 82-5421, 83-5970. United States Court of Appeals, Ninth Circuit. Argued and Submitted Dec. 7, 1983. Decided Jan. 24, 1984. Martin Faier, Chicago, Ill., for plaintiff-appellant. Charles Wills, Wills, Green & Mueth, Los Angeles, Cal., for defendants-appellees. Appeal from the United States District Court for the Central District of California. Before GOODWIN, WALLACE and TANG, Circuit Judges. GOODWIN, Circuit Judge. 1 Plaintiff, Fast Heat Element Manufacturing Co., Inc., is the owner of the United States patents 3,970,821, entitled "Electrically Heated Torpedo" and 4,120,086, entitled "Method of Making Electrically Heated Nozzle." Both relate to devices designed for use in molding plastics. The device heats and directs a stream of molten resins into a form. The "Torpedo" patent claims the…