In re Twomey

This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the rejection by the Primary Examiner of claims 1, 7, 8, 14, 36, 37, 38, 39, and 45 of appellants’ application, serial No. 619,110, for a patent on a fractionating column. Seven claims stand allowed.

Claims 1 and 7, which are representative of the appealed claims, are as follows:

1. In a liquid fractionating column: the combination with a distributor dividing a liquid stream into a plurality of lesser streams of predetermined constant volumetric relation, of a succession of fractionating…