If no person within sixty (60) days after the will has been admitted to probate contests the same or the validity thereof, the probate of the will is conclusive. Laws 1961, p. 442, § 2.
Oklahoma Legal Code
If no person within sixty (60) days after the will has been admitted to probate contests the same or the validity thereof, the probate of the will is conclusive. Laws 1961, p. 442, § 2.