Patent Cooperation Treaty Update Withdrawal of Chapter II Reservations by Liechtenstein and Switzerland The United States Patent and Trademark Office received notification from the World Intellectual Property Organization (WIPO) that on June 1, 1995, Liechtenstein and Switzerland notified the withdrawal of their declarations under Article 64(1)(a) of the PCT. Liechtenstein and Switzerland will become bound by Chapter II of the PCT on September 1, 1995. The withdrawals of the declarations has the effect that, on and after September 1, 1995, (a) nationals and residents of Liechtenstein and Switzerland may submit demands for international preliminary examination of international applications filed by them; (b) Liechtenstein and Switzerland may be elected in demands for international preliminary examination, or in later elections, submitted in respect of international applications in which Liechtenstein and Switzerland are designated States; (c) paragraphs (a) and (b) apply irrespective of whether the international application is filed before, on or after September 1, 1995. The time limit for entering the national phase before the Swiss Federal Intellectual Property Office will be extended from 20 to 30 months from the priority date if Liechtenstein and Switzerland are elected in a demand for international preliminary examination or in a later election, provided the said demand or later election is received before the expiration of the 19th month from the priority date, even in respect of international applications which are pending on September 1, 1995. July 17, 1995 BRUCE A. LEHMAN Assistant Secretary of Commerce and Commissioner of Patents and Trademarks