Section 57-3B-8 - Duration and renewalA. A registration of a mark is effective for ten years from the date of registration. An application for renewal shall be filed within six months prior to its expiration in the manner required by the secretary. The renewed registration shall be effective for ten years from the date of expiration of the original registration. The application for renewal shall be accompanied by the renewal fee. A registration of a mark may be renewed for successive periods of ten years as provided in this section.B. All applications for renewal, whether of registrations made under the Trademark Act or of registrations made under any act prior to the effective date of that act, shall include a verified statement that the mark has been and is still in use and include a specimen showing actual use of the mark on or in connection with the goods or services.