(1) If several persons are involved in the proceedings on the appeal on points of law, the notice of appeal and the statement of grounds of appeal shall be served on the other parties, inviting them to make any statements in writing to the Federal Court of Justice within a specific time limit after service. The date on which the appeal on points of law was filed shall be communicated when the notice of appeal is served. The appellant should submit the required number of certified copies together with the notice of appeal or the statement of grounds of appeal.
(2) If the President of the German Patent and Trade Mark Office is not involved in the proceedings on an appeal on points of law, section 68 (1) shall apply accordingly.