Patent Appeal No. 5691. Argued March 8, 1950. Decided April 3, 1950. Truman S. Safford, New York City (Curtis, Morris Safford, New York City, Richard K. Stevens, and Davidson C. Miller, Washington, D.C., of counsel), for appellant. E.L. Reynolds, Washington, D.C. (Walter J. Derenberg, Washington, D.C., of counsel), for Commissioner of Patents. Before GARRETT, Chief Judge, and JACKSON, O'CONNELL and JOHNSON, Judges. JACKSON, Judge. The Commissioner of Patents affirmed a decision of the Examiner of