International Standard Electric Corp. v. Kingsland

This is the second time these cases have been before this court. The first appeals were from judgments of the District Court dismissing complaints under R.S.4915, 35 U.S.C.A. § 63, to obtain patents.

The claimed inventions are for combinations of electrical circuits and alleged conventional electromechanical elements to perform calculating operations and consist primarily, appellant contended, in the devising of circuits which make possible the use of relays, switches and other elements “of types used widely in telephone exchange systems.”

The applications involved were rejected by the Patent…