Application of George R. Norman, William M. Lesuer and Thomas W. Mastin

RICH, Judge.

This appeal is from the decision of the Patent Office Board of Appeals affirming the rejection of claims 11-20 of application Ser. No. 602,453, filed August 6, 1956, for “Esters of Organic Phosphino-dithioic Acids and Methods for Preparing Same.” Notwithstanding the title, all claims on appeal are directed to method.

The subject matter of the claims is sufficiently indicated by claim 11 which reads:

There is no need to discuss the other claims or to distinguish them from one another. Patentability of all of them depends on the obviousness of their subject matter over the following…