Kan. Stat. Ann. § 59-617
No will of a testator who died while a resident of this state shall be effectual to pass property unless a petition is filed for the probate of such will within six months after the death of the testator, except as hereinafter provided.
L. 1939, ch. 180, § 53; L. 1943, ch. 213, § 1; L. 1972, ch. 215, § 1; L. 1985, ch. 191, § 8; July 1.