In Re Ball

LENROOT, Associate Judge.

This appeal brings before us for review a decision of the Board of Appeals of the United States Patent Office, affirming a decision of the Examiner rejecting claims 29, 30, 32, 35, 36, 37, and 38 of appellant’s application. Certain claims were allowed by the Examiner, and certain other claims were also rejected by the Examiner, which rejection was affirmed by the Board of Appeals, but which claims are not included in the appeal before us.

The claims involved in this appeal were copied by appellant from a patent to Wilms et al., No. 1,804,729, issued May 12, 1931, and…