In re Swain

By this appeal appellants seek review and reversal of the decision of the Board of Appeals of the United States Patent Office affirming the action of the Primary Examiner rejecting all the claims, numbered 1 to 7, inclusive, embraced in application, serial No. 371,562, for a patent on “Recovery of Guanidine Salts.” No product claims are involved.

The brief for appellants states, inter alia:

Various guanidine salts, of which the most important is guanidine nitrate, may be obtained as a solution in liquid ammonia in the form of a hot autoclave charge under high pressure according to U. S. patent…