# Changes in Requirements for Signature of Documents, Recognition of Representatives, and Establishing and Changing the Correspondence Address in Trademark Cases
> **US Patent and Trademark Office** · Final rule · Published 2009-10-26 · Effective 2009-12-28 · 74 FR 54898
## Document
- **Document number:** E9-25460
- **Category:** other
- **Sub-agency:** US Patent and Trademark Office
- **Federal Register citation:** 74 FR 54898
- **CFR reference:** 37 CFR 2
- **Publication date:** 2009-10-26
- **Effective date:** 2009-12-28
- **Commerce docket:** Docket No. PTO-T-2008-0021
## Abstract

The United States Patent and Trademark Office ("Office") is revising the Trademark Rules of Practice to set forth the requirements for signature of documents filed in the Office, recognition of representatives, and establishing and changing the correspondence address in trademark cases.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/10/26/E9-25460/changes-in-requirements-for-signature-of-documents-recognition-of-representatives-and-establishing)
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