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IN RE PHILLIPS

Patent Appeals No. 5184.

156 F.2d 187 (1946)

In re PHILLIPS.

Court of Customs and Patent Appeals.

June 11, 1946.

Attorney(s) appearing for the Case

Earl & Chappell, of Kalamazoo, Mich. (Otis A. Earl, of Kalamazoo, Mich., and Munson H. Lane, of Washington, D. C., of counsel), for appellant.

W. W. Cochran, of Washington, D. C. (E. L. Reynolds, of Washington, D. C., of counsel), for Commissioner of Patents.

Before GARRETT, Presiding Judge, and BLAND, HATFIELD, JACKSON, and O'CONNELL, Associate Judges.

BLAND, Associate Judge.

This appeal from the decision of the Board of Appeals of the United States Patent Office involves an alleged improvement relating to piston rings. Appellant's device is described by the examiner as follows: "The application discloses a three part piston ring comprising two thin cylinder contacting rings and an expander element. Each cylinder contacting ring has an axial extending shoulder formed by an offset circumferentially of the ring. The...

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