Application of De Vaney

GARRETT, Chief Judge.

This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the rejection by the Primary Examiner of all the claims—three in number—embraced in appellant’s application for patent relating to alleged improvements in the beneficiation of silicious iron-bearing minerals by cationic froth flotation processes. It is understood that by “beneficiation” as used in mineral art concentration of the ore is meant.

The claims read:

“6.‘ Process of concentrating the oxidic iron content of an aqueous pulp of a silicious, essentially…