Kennatrack Corporation v. The Stanley Workes

KNOCH, Circuit Judge.

Plaintiff, Eennatrack Corporation (sometimes herein called “Eennatrack”), brought this action to enjoin infringement of its United States Letters Patent No. 2,732,919, for a sliding door frame assembly, and to recover damages therefor. The Trial Court, sitting without a jury, granted judgment for defendant, and this appeal followed. Plaintiff contends that the Trial Court erred in concluding that the patent in suit was invalid and not infringed by defendant, The Stanley Works (sometimes herein called “Stanley”), in its manufacture and sale of a pocket-door frame…