Application of William M. Venner and Percy L. Bowser, Jr

MARTIN, Judge.

This is an appeal from the decision of the Board of Appeals of the Patent Office affirming the final rejection by the examiner of claims 1, 2, 5, 8, 10, 13 and 20, all of the claims remaining, of application serial No. 309,966, for “Apparatus for Molding Trunk Pistons.” The subject matter of the claims on appeal was disclosed in a parent application of the same inventors, serial No. 789,124, filed December 1, 1947, and co-pending with the instant application.

The appealed claims relate to a permanent mold casting apparatus for molding trunk pistons of aluminum and magnesium…