Court of Customs and Patent Appeals February 10, 1948, No. 5391 (In re Donaldson)

Gtarrett, Presiding Judge,

delivered the opinion of the court:

. The only two claims numbered, respectively, 20 and 21, of appellant’s application for patent relating to “Treated Paper Liner for Adhesive Roll” were rejected by the Primary Examiner on the ground of lack of invention over prior art cited.