Okla. Stat. tit. 58, § 58-632.1: Validation of decrees entered prior to January 1, 1941

In all cases of administration of estates of deceased persons in

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

January 1, 1941, 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 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, 1946, and provided further, that

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

person laboring under legal disability.