Tashjian v. Forderer Cornice Works

GILBERT, Circuit Judge.

The patent involved in this appeal was issued to the appellant November 28, 1922, letters patent 1,-437,324. It relates to an element employed in the construction of buildings, and it is designated “a combined conduit, junction box, and outlet box.” Its purpose is to provide improved means to meet the requirements of electrical installations in office buildings and other buildings for electrical lights, telephones, signal devices, etc. It had been a common practice to effect such installations by three- instrumentalities, junction boxes, conduit members, and outlet…