In re McIntosh

Cole, Judge,

delivered the opinion of the court:, This is an appeal from the decision of the Board of Appeals of the United States; Patent Office, affirming the final rejection by the Primary Examiner of claims ! to 6 inclusive of appellant’s application, serial No. 241,736, filed August 14,1951, for a patent on a supersonic *847airplane. Claims 1 and 3, which are representative of the appealed claims, are as follows:1

1. A supersonic airplane of isosceles triangular plan form comprising two right triangular wings of the same dimension having their span sections progressively increasing in…