Court of Appeals for the First Circuit December 4, 1981, 80-1698, 80-1733 (Colortronic Reinhard & Co., K.G. v. Plastic Controls, Inc., Colortronic Reinhard & Co., K.G. v. Plastic Controls, Inc.)

LEVIN H. CAMPBELL, Circuit Judge.

Plaintiffs Colortronic Reinhard & Company, K.G., and Colortronics, Inc. (hereinafter referred to collectively as “Colortronics”) appeal from the district court’s judgment, 496 F.Supp. 259, declaring Colortronics’ patent, No. 3,814,296 (more particularly its Claims 1 and 5) invalid for obviousness under 35 U.S.C.