Ohio Rev. Code Ann. § 1103.02

When the articles of incorporation and the superintendent of financial institutions' certificate of approval are filed with the secretary of state, the persons who have subscribed them or their successors and assigns shall become a body corporate by the name designated in the articles of incorporation, with succession. The legal existence of the state bank begins upon the filing of the articles of incorporation and, unless the articles of incorporation otherwise provide, its period of existence is perpetual.