Ohio Rev. Code Ann. § 3385.02
(A) Property on loan to a museum other than pursuant to a written agreement shall be considered to be abandoned, and title to the property shall vest in the museum, free from all claims of the owner and of all persons claiming under the owner, if all of the following apply:
(B) With respect to property on loan to a museum pursuant to a written agreement, the loan shall be considered to be terminated, and title to the property shall vest in the museum, free from all claims of the owner and of all persons claiming under the owner, if all of the following apply: