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HACKETHAL v. ANDERSON

Patent Appeal No. 5640.

179 F.2d 1021 (1950)

HACKETHAL v. ANDERSON.

United States Court of Customs and Patent Appeals.

February 2, 1950.

Attorney(s) appearing for the Case

Semmes, Keegin, Beale & Semmes, Washington, D. C. (Harry H. Semmes, Lee M. Robinson, and Irvin S. Thompson, Washington, D. C., of counsel), for appellant.

Charles L. Shelton, East Hartford, Conn. (Loyd H. Sutton, Washington, D. C., Harris G. Luther, East Hartford, Conn., and Gordon W. Daisley, Washington, D. C., of counsel), for appellee.

Before GARRETT, Chief Judge, and JACKSON, O'CONNELL and JOHNSON, Associate Judges.

JACKSON, Judge.

This is an appeal in an interference proceeding from a decision of the Board of Interference Examiners of the United States Patent Office, awarding priority of invention of the subject matter of the single count in issue to appellee. The count reads as follows:

"In a propeller, a rotary driving element having blade shank receiving sockets formed therein, a blade mounted in each of said sockets, each of said blades being provided with a flange...

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