Innovation & intellectual property · 04/04/2006Updated: 10/17/2026 · 1 min read
USPTO Grants Interim Extension to Zilmax Patent
Summary
The United States Patent and Trademark Office has issued three one-year interim extensions to the term of U.S. Patent No. 4,585,770, covering the Zilmax brand of zilpaterol hydrochloride, a feed additive used in cattle production.
Original source language: Federal Register — Patent and Trademark OfficeOpen original release →