(1) This Convention shall remain in force without limitation as to time.
(2) Any country may denounce this Act by notification addressed to the Director General. Such denunciation shall constitute also denunciation of all earlier Acts and shall affect only the country making it, the Convention remaining in full force and effect as regards the other countries of the Union.
(3) Denunciation shall take effect one year after the day on which the Director General has received the notification.
(4) The right of denunciation provided by this article shall not be exercised by any country before the expiration of five years from the date upon which it becomes a member of the Union.