In re Landrock

This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the decision of the Primary Examiner rejecting claims 21 to 29, inclusive, 37, 38, and 39 in appellants’ application for a patent for an invention relating to a photographic copying machine. The appealed claims were rejected on the ground of lack of invention over the prior art cited.

Claims 32 to 36, inclusive, 40, 41, and 42 were allowed by the Primary Examiner. Claims 30 and 31 were allowed by the Board of Appeals.

Claims 21 and 27 are illustrative of the appealed claims, although we…