Mo. R. Crim. P. 30.03
Where the defendant or the state has the right of appeal including appeals from an order in a post-conviction proceeding involving a prior felony conviction, but notice of appeal is not filed with the clerk of the trial court within ten days after the judgment becomes final, the defendant or the state may file a notice of appeal in the trial court if, within twelve months after the judgment becomes final, a motion for leave to file such notice is filed in the appropriate appellate court and it thereafter sustains the motion and grants such leave.
Such special order may be made by the appellate court, in its discretion, for good cause shown. The order shall specify the time within which the notice of appeal is to be filed in the trial court.
Mo. R. Crim. P. 30.03
Committee Note - 1980
This is substantially the same as prior Rule 28.07.