In the event of the satisfaction or release of any chattel mortgage, a certified copy of which has been filed with the Secretary of State prior to September 1, 1963; the person so satisfying or releasing the mortgage shall send a duly executed discharge or certified copy thereof, with a fee of 25 cents, to the Secretary of State, who shall note such discharge in an appropriate column of the index kept by the Secretary of State. All such fees received by the Secretary of State shall be promptly paid to the State Treasurer and placed in the General Fund. [Amended by 1961 c.726 § 407]