Okla. Stat. tit. 58, § 58-632.2: Validation of decrees entered prior to January 1, 1951

In all cases of administration of estates of deceased persons in

this state, where the final decrees have been entered prior to

January 1, 1951, and which said final decrees are, or may be,

defective or invalid by reason of any failure to make, or any defect

in, the final account, or in the petition for distribution and

determination of heirship, or in the order setting the same for

hearing, or in the notice of hearing thereon, said final decrees are

hereby validated; provided, however, this act shall not apply to any

case wherein action is instituted and maintained to modify or vacate

such final decree prior to January 1, 1956, and provided, further,

that the above shall not apply to insane persons, incompetents, or

to any person laboring under legal disability.