WIPO

INTERNATIONAL TREATIES

Patent Cooperation Treaty (PCT)

WOPCT

1/71

Patent Cooperation Treaty

Done at Washington on June 19, 1970,
amended on September 28, 1979,
modified on February 3, 1984, and October 3, 2001

(as in force from April 1, 2002)

TABLE OF CONTENTS⁽ⁱ⁾

Preamble

Introductory Provisions


Article 1	Establishment of a Union


Article 2	Definitions

Chapter I: International Application and International Search


Article 3	The International Application


Article 4	The Request


Article 5	The Description


Article 6	The Claims


Article 7	The Drawings


Article 8	Claiming Priority


Article 9	The Applicant


Article 10	The Receiving Office


Article 11	Filing Date and Effects of the International Application


Article 12	Transmittal of the International Application to the International Bureau and the International Searching Authority


Article 13	Availability of Copy of the International Application to Designated Offices


Article 14	Certain Defects in the International Application


Article 15	The International Search


Article 16	The International Searching Authority


Article 17	Procedure Before the International Searching Authority


Article 18	The International Search Report


Article 19	Amendment of the Claims Before the International Bureau


Article 20	Communication to Designated Offices


Article 21	International Publication


Article 22	Copy, Translation, and Fee, to Designated Offices


Article 23	Delaying of National Procedure


Article 24	Possible Loss of Effect in Designated States


Article 25	Review by Designated Offices


Article 26	Opportunity to Correct Before Designated Offices


Article 27	National Requirements


Article 28	Amendment of the Claims, the Description, and the Drawings, Before Designated Offices


Article 29	Effects of the International Publication


Article 30	Confidential Nature of the International Application

Chapter II: International Preliminary Examination


Article 31	Demand for International Preliminary Examination


Article 32	The International Preliminary Examining Authority


Article 33	The International Preliminary Examination


Article 34	Procedure Before the International Preliminary Examining Authority


Article 35	The International Preliminary Examination Report


Article 36	Transmittal, Translation, and Communication, of the International Preliminary Examination Report


Article 37	Withdrawal of Demand or Election


Article 38	Confidential Nature of the International Preliminary Examination


Article 39	Copy, Translation, and Fee, to Elected Offices


Article 40	Delaying of National Examination and Other Processing


Article 41	Amendment of the Claims, the Description, and the Drawings, Before Elected Offices


Article 42	Results of National Examination in Elected Offices

Chapter III: Common Provisions


Article 43	Seeking Certain Kinds of Protection


Article 44	Seeking Two Kinds of Protection


Article 45	Regional Patent Treaties


Article 46	Incorrect Translation of the International Application


Article 47	Time Limits


Article 48	Delay in Meeting Certain Time Limits


Article 49	Right to Practice Before International Authorities

Chapter IV: Technical Services


Article 50	Patent Information Services


Article 51	Technical Assistance


Article 52	Relations with Other Provisions of the Treaty

Chapter V: Administrative Provisions


Article 53	Assembly


Article 54	Executive Committee


Article 55	International Bureau


Article 56	Committee for Technical Cooperation


Article 57	Finances


Article 58	Regulations

Chapter VI: Disputes


Article 59	Disputes

Chapter VII: Revision and Amendment


Article 60	Revision of the Treaty


Article 61	Amendment of Certain Provisions of the Treaty

Chapter VIII: Final Provisions


Article 62	Becoming Party to the Treaty


Article 63	Entry into Force of the Treaty


Article 64	Reservations


Article 65	Gradual Application


Article 66	Denunciation


Article 67	Signature and Languages


Article 68	Depositary Functions


Article 69	Notifications

⁽ⁱ⁾ Table of Contents added for the convenience of the reader; it does not appear in the original.

Patent Cooperation Treaty

Done at Washington on June 19, 1970, amended on September 28, 1979, modified on February 3, 1984, and October 3, 2001

Done at Washington on June 19, 1970,
amended on September 28, 1979,
modified on February 3, 1984, and October 3, 2001