Patent Appeal No. 6812. August 15, 1962. Mason, Fenwick Lawrence, Boynton P. Livingston, Washington, D.C. (G. Cabell Busick, Washington, D.C., of counsel), for appellant. Robert K. Youtie, Philadelphia, Pa., for appellee. Before WORLEY, Chief Judge, and RICH, MARTIN, and SMITH, Judges, and Judge WILLIAM H. KIRKPATRICK. United States Senior District Judge for the Eastern District of Pennsylvania, designated to participate in place of Judge O'CONNELL, pursuant to provisions of Section 294(d), Title