Innovation & intellectual property · 10/04/1998Updated: 10/17/2026 · 1 min read
Patent Office Grants Interim Extension to PROVIGIL Patent
Summary
The United States Patent and Trademark Office has issued a certificate under 35 U.S.C. 156(d)(5) for a one-year extension of the term of U.S. Patent No. 4,177,290, which covers the PROVIGIL medication.
Original source language: Federal Register — Patent and Trademark OfficeOpen original release →