In re Teter

O’Connell, Judge,

delivered tlie opinion of tlie court:

This is an appeal from tlie decision of the Board of Appeals of the United States Patent Office affirming the action of the Primary Examiner in rejecting claim 4 in appellant’s application for a patent for alleged improvements in the catalytic cracking of hydrocarbon oils. Claims 2, 3, 5, and 6 were allowed.

Claim 4 was rejected for the stated reason that it defined no subject matter patentable over the disclosure of the patent to Wilson, No. 2,249,924, granted July 22, 1941.

Claim 4 reads—

4. In the catalytic cracking of hydrocarbon oils the…