Patent Term Extended Under 35 U.S.C. 156 An interim extension of the term of U.S. Patent No. 4,085,225 has been granted under 35 U.S.C. 156(e)(2) for a period of one year from the original expiration date of the patent. An application for patent term extension was filed by the patent owner of record Duphar International Research B.V. based on approval of the product "LUVOX" by the Food and Drug Administration.