Proceedings on appeal

§ 143. Proceedings on appeal The United States Court of Customs and Patent Appeals shall, before hearing such appeal, give notice of the time and place of the hearing to the Commissioner and the parties thereto. The Commissioner shall transmit to the court certified copies of all the necessary original papers and evidence in the case specified by the appellant and any additional papers and evidence specified by the appellee and in an ex parts case the Commissioner shall furnish the court with the grounds of the decision of the Patent Office, in writing, touching all the points involved by the reasons of appeal.