Buckeye Blower Co. v. Arensmeyer, Warnock & Zahrndt, Inc.

HAZEL, District Judge.

This is a suit for infringement of a patent issued to Joseph E. McGuinness on March 13, 1917, No. 1,218,880, for heating apparatus, having relation to so-called indirect heating apparatus, commercially known as a unitary heating and ventilating apparatus, for use in buildings, generally schools, hospitals, hotels, or other public buildings. Plaintiff acquired the patent by purchase. It is constructed in compact, portable form of sheet-iron, manufactured at the factory and transported directly, to the place of installation, and there connected to steam pipes or ducts in…