Minnesota Statutes Property Taxes (Ch. 272-289) § 284.24. Opening judgments

No judgment in any action brought hereunder by the state, or its successor in interest, shall be opened, vacated, or set aside for the purpose of permitting any defendant upon whom personal service of the summons was made either within or without the state, and who was in default, to come in and defend the action at any time. No judgment in any such action shall be opened, vacated, or set aside for the purpose of permitting any defendant upon whom service of the summons was made by publication, and who was in default, to come in and defend such action unless application therefor be made before the time to appeal from the judgment has expired. Upon the expiration of the time to appeal, the judgment shall become conclusive and shall not thereafter be opened at the instance of any defaulting defendant; provided, that this shall not impair the effect of the judgment prior to such time.