Within two months prior to the expiration of the maximum term of confinement authorized for any patient under section 17a-567, the director of the hospital may, upon the recommendation of the board, initiate proceedings under section 17a-497 or 17a-520 for the commitment or further commitment, as the case may be, of the patient.
Conn. Gen. Stat. § 17a-573
(1957, P.A. 650, S. 17; 1961, P.A. 249; P.A. 73-245, S. 13; P.A. 82-472, S. 153, 183; P.A. 95-257, S. 20, 58; P.A. 18-86, S. 44.)