Minn. Stat. § 92.213: LIMITATION OF ACTIONS.

If full payment of the amount due the state for any state public land sold before May 1, 1941, is not made before the expiration of the time prescribed in the certificate for full payment of the principal or any lawful extension of time, no action for the recovery or possession of the land or for the enforcement of any right, title, interest in, or claim to it may be maintained by the purchaser or any one claiming under the purchaser unless the action is commenced within one year after the expiration of the time or extension.