Article 20
(1) Parties adversely affected from decisions taken by the Office within the context of this Book may appeal against the decisions before the Office.
(2) Appeal shall be made in written and with grounds to the Office within two months from the notification date of the decision. In case the grounds of the appeal are not submitted within this time, the appeal shall be deemed not to have been made. In order for the examination of the appeal, it is mandatory that the appeal fee is paid within the period of the appeal and that the information regarding the payment of the fee is submitted to the Office within the same period. After the expiration of the appeal period, the grounds for appeal may not be altered and new grounds may not be added.