Court of Customs and Patent Appeals May 14, 1964, Patent Appeal 7165 (Application of William D. Lawther)

MARTIN, Judge.

This is an appeal from a decision of the Board of Appeals affirming the examiner’s rejection of claims 14-18 of appellant’s application serial No. 683,475 filed September 12, 1957 for improvements in shell molding. No claim has been allowed.

Appellant’s application relates to a material for making shell molds and cores for producing metal castings.