# July 2009 Revision of Patent Cooperation Treaty Procedures
> **US Patent and Trademark Office** · Final rule. · Published 2009-07-01 · Effective 2009-07-01 · 74 FR 31372
## Document
- **Document number:** E9-15303
- **Category:** uspto-patent
- **Sub-agency:** US Patent and Trademark Office
- **Federal Register citation:** 74 FR 31372
- **CFR reference:** 37 CFR 1
- **Publication date:** 2009-07-01
- **Effective date:** 2009-07-01
- **Commerce docket:** Docket No.: PTO-P-2009-0025
## Abstract

The United States Patent and Trademark Office (USPTO) is revising the rules of practice in title 37 of the Code of Federal Regulations (CFR) to conform them to certain amendments made to the Regulations under the Patent Cooperation Treaty (PCT) that take effect on July 1, 2009. These amendments result in a change to the procedure under the PCT whereby applicants may make amendments to the claims in an international application.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/07/01/E9-15303/july-2009-revision-of-patent-cooperation-treaty-procedures)
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