S.D. Codified Laws § 37-6-14 (2026)
Registration of a mark under § 37-6-13 is effective for a term of four years from the date of registration. Upon application filed within six months prior to the expiration of the term, on a form to be furnished by the secretary of state, the registration may be renewed for a like term. A renewal fee of one hundred twenty-five dollars, payable to the secretary of state, shall accompany the application for renewal of the registration. A mark registration may be renewed for successive periods of four years in like manner.
Source: SL 1955, ch 232 , § 5; SDC Supp 1960, § 51.0905; SL 1980, ch 264 , § 12; SL 1997, ch 141 , § 3; SL 2003, ch 8 , § 8; SL 2009, ch 4 , § 8.