# Cancellation of Rule of Practice 41.200(b) Before the Board of Patent Appeals and Interferences in Interference Proceedings
> **US Patent and Trademark Office** · Final rule. · Published 2010-04-15 · Effective 2010-04-15 · 75 FR 19558
## Document
- **Document number:** 2010-8626
- **Category:** other
- **Sub-agency:** US Patent and Trademark Office
- **Federal Register citation:** 75 FR 19558
- **CFR reference:** 37 CFR 41
- **Publication date:** 2010-04-15
- **Effective date:** 2010-04-15
- **Commerce docket:** Docket No. PTO-P-2010-0032
## Abstract

The United States Court of Appeals for the Federal Circuit issued a decision in Agilent Technologies, Inc. v. Affymetrix, Inc., 567 F.3d 1366 (Fed. Cir. 2009). That decision impacted the continuing viability of portions of a patent interference rule. The United States Patent and Trademark Office (USPTO or Office) is therefore cancelling the affected portion of the interference rule.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/04/15/2010-8626/cancellation-of-rule-of-practice-41200b-before-the-board-of-patent-appeals-and-interferences-in)
---
*AI Analytics · CC0 1.0*