Contracting Parties > Patent Cooperation Treaty > United States of America
June 19, 1970
November 26, 1975
Entry into force
January 24, 1978
Declarations, reservations etc.
Ratification contained a declaration provided for in Article 64(1)(a). This declaration was withdrawn on April 1, 1987, with effect from July 1, 1987.
With the declarations provided for in Articles 64(3)(a) and 64(4)(a).
Extends to all areas for which the United States of America has international responsibility.