Patent Appeal No. 8007. January 16, 1969. Raywood H. Blanchard, Kalamazoo, Mich., (Eugene O. Retter, George T. Johannesen, Kalamazoo, Mich., 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 RICH, SMITH, ALMOND and BALDWIN, Judges. BALDWIN, Judge. This is an appeal from the decision of the Board of Appeals, affirming the examiner's rejection of the sole remaining claim in