# April 2007 Revision of Patent Cooperation Treaty Procedures
> **US Patent and Trademark Office** · Final rule; correction. · Published 2007-10-11 · Effective 2007-11-09 · 72 FR 57863
## Document
- **Document number:** E7-19960
- **Category:** other
- **Sub-agency:** US Patent and Trademark Office
- **Federal Register citation:** 72 FR 57863
- **CFR reference:** 37 CFR 1
- **Publication date:** 2007-10-11
- **Effective date:** 2007-11-09
- **Commerce docket:** Docket No. PTO-C-2006-0057
## Abstract

The United States Patent and Trademark Office (Office) published a final rule in the Federal Register of September 10, 2007, 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 took effect on April 1, 2007. This document corrects errors in that final rule.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/10/11/E7-19960/april-2007-revision-of-patent-cooperation-treaty-procedures)
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