Kan. Stat. Ann. § 17-6415
Unless otherwise provided by the terms of the subscription, a subscription for stock of a corporation to be formed shall be irrevocable, except with the consent of all other subscribers or the corporation, for a period of six months from its date.
L. 1972, ch. 52, § 42; L. 2016, ch. 110, § 41; July 1.