Patent Appeal No. 2181.

36 F.2d 511 (1929)

MORGAN v. DRAKE et al.

Court of Customs and Patent Appeals.

December 30, 1929.

Attorney(s) appearing for the Case

Southgate, Fay & Hawley, of Worcester, Mass. (Charles T. Hawley, of Worcester, Mass., of counsel), for appellant.

George H. Kennedy, Jr., of Worcester, Mass., for appellee.

Before GRAHAM, Presiding Judge, and BLAND, HATFIELD, GARRETT, and LENROOT, Associate Judges.

GARRETT, Associate Judge.

This is a three-party interference proceeding involving alleged "useful improvements in grinding machines," being machines particularly for the grinding of internal surfaces.

On February 3, 1921, appellant filed an application in the Patent Office seeking a patent, which was granted April 28, 1925, being No. 1,535,331, and on January 20, 1926, he filed an application for a reissue of No. 1,535,331, presenting therein claims corresponding...


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