Hackethal v. Anderson

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 adjacent the shank end thereof, means fixed at a predeter-, mined- distance from the axis of said rotary driving element and cooperating…