Patent Appeal No. 6337. March 21, 1958. William G. MacKay, San Francisco, Cal. (Charles R. Allen, Jr., Washington, D.C., of counsel), for appellant. Byron, Hume, Groen Clement, Chicago, Ill. (Samuel Lebowitz, Washington, D.C., and Milton T. Miller, Chicago, Ill., of counsel), for appellee. Before JOHNSON, Chief Judge, and O'CONNELL, WORLEY, RICH, and JACKSON (retired), Judges. O'CONNELL, Judge. This is an appeal from the decision of the Assistant Commissioner of Patents, acting for the Commissioner