Okla. Stat. tit. 22, § 22-953: Time for applying for new trial - Limitations

The application for a new trial must be made before judgment is

entered; but the court or judge thereof may for good cause shown

allow such application to be made at any time within thirty (30)

days after the rendition of the judgment. A motion for a new trial

on the ground of newly discovered evidence may be made within three

(3) months after such evidence is discovered but no such motion may

be filed more than one (1) year after judgment is rendered, and if

on the ground that the grand jury was not properly drawn or

impaneled then the motion must be made within thirty (30) days after

the judgment is rendered.