Application of Christopher L. Wilson and Robert Lieberman

RICH, Judge.

This appeal is from the affirmance by the Patent Office Board of Appeals of the examiner’s rejection of claims 1, 2, 4, 6, 7, 10, 11 and 12 of appellants’ patent application Ser. No. 451,703, filed August 23, 1954, for “Process of Making Foamed Polyester Materials.”

The invention is a method of making what are now known as polyurethane foam products. Appellants’ specification acknowledges that such products and processes of making them were known prior to their invention and that the foam product results from reacting a polyester resin, an organic diisocyanate, and water. A…