1. Registration of a mark hereunder shall be effective for a term of ten years from the date of registration and, upon application filed within six months prior to the expiration of such term, on a form to be authorized or furnished by the secretary of state, the registration may be renewed for a like term. A renewal fee of ten dollars, payable to the director of revenue, shall accompany the application for renewal of the registration. A mark registration may be renewed for successive periods of ten years in like manner.

2. The secretary of state shall notify registrants of marks hereunder of the necessity of renewal within the year next preceding the expiration of the ten years from the date of registration, by writing to the last known address of the registrants.

3. Any registration in force on September 28, 1973, shall expire ten years from the date of the registration or of the last renewal thereof or September 28, 1974, whichever is later, and may be renewed by filing an application with the secretary of state on a form authorized or furnished by him and paying the aforementioned renewal fee therefor within six months prior to the expiration of the registration.

4. All applications for renewals under sections 417.005 to 417.066 whether of registrations made under sections 417.005 to 417.066 or of registrations effected under any prior act, shall include a statement that the mark is still in use in this state.

5. The secretary of state shall within six months after September 28, 1973, notify all registrants of marks under previous acts of the date of expiration of such registrations unless renewed in accordance with the provisions of sections 417.005 to 417.066, by writing to the last known address of the registrants.