Patent Appeal No. 76-681. Decided August 18, 1977. Arthur H. Seidel, Thomas W. Ehrmann, Milwaukee, Wis. (Quarles Brady, Milwaukee, Wis.), attorneys of record, for appellant. Joseph F. Nakamura, Washington, D.C., for the Commissioner of Patents, R.D. Edmonds, Washington, D.C., of counsel. Appeal from the Patent and Trademark Office Board of Appeals. Before MARKEY, Chief Judge, RICH, BALDWIN and MILLER, Judges, and HERBERT N. MALETZ, Judge, United States Customs Court. BALDWIN, Judge. This is an appeal