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,

   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,

July 17, 1995                                                   BRUCE A. LEHMAN
                                            Assistant Secretary of Commerce and
                                         Commissioner of Patents and Trademarks