In re Wickersham

'This is an appeal from the decision of the Board of Appeals of the United States Patent Office, affirming the decision of the examiner, denying patentability, in view of the prior art, of claims numbered 21, 25, 26, 28, 29, 31, 37, 38, 40 and 41 of appellant’s application for a patent for improvements in threshing machines.

The Primary Examiner allowed seven claims presented in appellant’s application. The Board of Appeals allowed three additional «claims. All of said allowed claims involved certain combinations of elements regarded as not shown in the prior art.

The application discloses a…