1. Any request for extension of the protection resulting from the international registration to a country which has availed itself of the right provided for in Article 3bis must be specially mentioned in the application referred to in Article 3(1).
2. Any request for territorial extension made subsequently to the international registration must be presented through the intermediary of the Office of the country of origin on a form prescribed by the Regulations. It shall be immediately registered by the International Bureau, which shall notify it without delay to the Office or Offices concerned. It shall be published in the periodical journal issued by the International Bureau. Such territorial extension shall be effective from the date on which it has been recorded in the International Register; it shall cease to be valid on the expiration of the international registration of the mark to which it relates.