In re Gunther

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 claims 10 and 11 of appellant’s application for a patent for lack of patentability over the cited prior art. No claims were allowed.

The claims before us read as follows:

10. In a process for the improved production of pure cellulose, thoroughly-saturating corn stalk chaff with caustic soda solution in a closed agitated vessel, introducing dry super-heated steam at 5 atmospheres into the closed^agitated.''vessel'.to"displaee"the-air' in-the…