Application of Pappas

JOHNSON, Judge.

This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the action of the Primary Examiner in finally rejecting claims 10, 12, 13, 14 and 19 of appellants’ application, Serial No. 568,-802, for a patent on “Airfoils.” No claim has been allowed.

Claims 10, 13 and 14 are considered representative and read as follows:

“10. An airfoil section derived from a basic thickness distribution contour having a chord, an elliptical forebody the longitudinal axis of which coincides with said chord and the transverse axis of which is normal to…