Patent Cooperation Treaty (PCT)
Article 65
Gradual Application
(1) If the agreement with any International Searching or Preliminary Examining Authority provides, transitionally, for limits on the number or kind of international applications that such Authority undertakes to process, the Assembly shall adopt the measures necessary for the gradual application of this Treaty and the Regulations in respect of given categories of international applications. This provision shall also apply to requests for an international-type search under Article 15(5).
(2) The Assembly shall fix the dates from which, subject to the provision of paragraph (1), international applications may be filed and demands for international preliminary examination may be submitted. Such dates shall not be later than six months after this Treaty has entered into force according to the provisions of Article 63(1), or after Chapter II has become applicable under Article 63(3), respectively.