Code of Federal Regulations > Title 37 > Chapter I > Part 1 > Subpart C - Subpart C—International Processing Provisions

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

GENERAL INFORMATION

§ 1.401 - Definitions of terms under the Patent Cooperation Treaty.

§ 1.412 - The United States Receiving Office.

§ 1.413 - The United States International Searching Authority.

§ 1.414 - The United States Patent and Trademark Office as a Designated Office or Elected Office.

§ 1.415 - The International Bureau.

§ 1.416 - The United States International Preliminary Examining Authority.

§ 1.417 - Submission of translation of international publication.

§ 1.419 - Display of currently valid control number under the Paperwork Reduction Act.

WHO MAY FILE AN INTERNATIONAL APPLICATION

§ 1.421 - Applicant for international application.

§ 1.422 - Legal representative as applicant in an international application.

§ 1.423 - [Reserved]

§ 1.424 - Assignee, obligated assignee, or person having sufficient proprietary interest as applicant in an international application.

THE INTERNATIONAL APPLICATION

§ 1.431 - International application requirements.

§ 1.432 - Designation of States by filing an international application.

§ 1.433 - Physical requirements of international application.

§ 1.434 - The request.

§ 1.435 - The description.

§ 1.436 - The claims.

§ 1.437 - The drawings.

§ 1.438 - The abstract.

FEES

§ 1.445 - International application filing, processing and search fees.

§ 1.446 - Refund of international application filing and processing fees.

PRIORITY

§ 1.451 - The priority claim and priority document in an international application.

§ 1.452 - Restoration of right of priority.

§ 1.453 - Transmittal of documents relating to earlier search or classification.

REPRESENTATION

§ 1.455 - Representation in international applications.

TRANSMITTAL OF RECORD COPY

§ 1.461 - Procedures for transmittal of record copy to the International Bureau.

TIMING

§ 1.465 - Timing of application processing based on the priority date.

§ 1.468 - Delays in meeting time limits.

AMENDMENTS

§ 1.471 - Corrections and amendments during international processing.

§ 1.472 - Changes in person, name, or address of applicants and inventors.

UNITY OF INVENTION

§ 1.475 - Unity of invention before the International Searching Authority, the International Preliminary Examining Authority and during the national stage.

§ 1.476 - Determination of unity of invention before the International Searching Authority.

§ 1.477 - Protest to lack of unity of invention before the International Searching Authority.

INTERNATIONAL PRELIMINARY EXAMINATION

§ 1.480 - Demand for international preliminary examination.

§ 1.481 - Payment of international preliminary examination fees.

§ 1.482 - International preliminary examination and processing fees.

§ 1.484 - Conduct of international preliminary examination.

§ 1.485 - Amendments by applicant during international preliminary examination.

§ 1.488 - Determination of unity of invention before the International Preliminary Examining Authority.

§ 1.489 - Protest to lack of unity of invention before the International Preliminary Examining Authority.

NATIONAL STAGE

§ 1.491 - National stage commencement, entry, and fulfillment.

§ 1.492 - National stage fees.

§ 1.495 - Entering the national stage in the United States of America.

§ 1.496 - Examination of international applications in the national stage.

§ 1.497 - Inventor's oath or declaration under 35 U.S.C. 371(c)(4).

§ 1.499 - Unity of invention during the national stage.