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IP Treaties Collection
Contracting Parties Patent Cooperation Treaty United Kingdom

Dates Signature: June 19, 1970 Ratification: October 24, 1977 Entry into force: January 24, 1978

Territorial Information

Extension of application to the territory of the Bailiwick of Guernsey with effect from March 23, 2021. (see PCT Notification No. 218)

Extension of application to the territory of Gibraltar with effect from January 1, 2021. (see PCT Notification No. 217)

Application to Hong Kong notified January 6, 1981; Entry into force: April 15, 1981. This application ceased to have effect from July 1, 1997. (see PCT Notification No. 122)

Application to the Isle of Man: July 27, 1983; Entry into force: October 29, 1983. (see PCT Notification No. 40)