Patent Appeal No. 7883. June 27, 1968. Rehearing Denied October 10, 1968. Robert F. Hause, Buffalo, N.Y. (James W. Dent, Washington, D.C., of counsel), for appellant. Joseph Schimmel, Washington, D.C. (Fred W. Sherling, Washington, D.C., of counsel), for the Commissioner of Patents. Before WORLEY, Chief Judge, and Judges RICH, SMITH, ALMOND and KIRKPATRICK. Senior District Judge, Eastern District of Pennsylvania, sitting by designation. RICH, Judge. This appeal is from a decision of the Patent Office