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

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