In re Burke

Hatftet.t), Judge,

delivered the opinion of the court:

This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the decision of the Primary Examiner rejecting claims 64 and 65 in appellants’ application for a *796patent for an alleged invention relating to a process of “crystallizing .a salt from solution.”

Claim 64 is illustrative of the appealed claims. It reads:

64. A process of crystallizing a salt from solution, which process comprises ■passing a solution of said salt into a crystallizing zone in which a body of .said solution is maintained under a…