Pub. L. 82-593, tit. 35, pt. II, ch. 13, sec. 142
Notice of appeal
§ 142. Notice of appeal When an appeal is taken to the United States Court of Customs and Patent Appeals, the appellant shall give notice thereof to the Commissioner, and shall file in the Patent Office his reasons of appeal, specifically set forth in writing, within such time after the date of the decision appealed from, not less than sixty days, as the Commissioner appoints.