(1) Even if they have been delivered in accordance with sentence 3, the decisions of the German Patent and Trade Mark Office shall be reasoned and a copy thereof served on the parties ex officio; a certification of the copy is not required. Execution copies will only be issued at the request of one of the parties and only in paper format. If a hearing has taken place, they may also be delivered at the end of the hearing. The decision need not be reasoned if only the applicant or proprietor of the trade mark is party to the proceedings and his request is granted.
(2) Upon service of the decision, the parties shall be instructed on the appellate remedy which is available from the decision, on the authority with which the appellate remedy shall be filed, on the time limit for filing of an appellate remedy, and, where a fee is payable for the appellate remedy in accordance with the Patent Costs Act, on the fee. The time limit for filing the appeal only begins to run if the parties have been instructed in accordance with sentence 1. If the instruction has not been given or was given incorrectly, filing the appellate remedy shall only be admissible within one year following service of the decision, except in cases where the party has been instructed in writing that an appellate remedy is available. Section 91 shall apply accordingly. Sentences 1 to 4 shall apply accordingly to the appellate remedy special motion (Erinnerung) in accordance with section 64.