LENROOT, Associate Judge.
This is an appeal from a decision of the Board of Appeals of the United States Patent Office affirming a decision of the Primary Examiner rejecting all of the claims of appellant's application for a patent filed on August 5, 1940. There accompanied the application an oath by appellant that the invention had not been in public use or on sale for more than two years prior to the filing of the application.
The board stated the ground...
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