Wyo. Stat. § 34-24-130: Periods of limitation.

(a) The expiration, before or after the effective date of this act, of any period of time specified by contract, statute or court order, during which a claim for money or property can be made or during which an action or proceeding may be commenced or enforced to obtain payment of a claim for money or to recover property, does not prevent the money or property from being deemed abandoned or affect any duty to file a report or to pay or deliver abandoned property to the administrator as required by this act.

(b) No action or proceeding may be commenced by the administrator against any holder concerning any provision of this act more than ten (10) years after the holder either specifically reported the property, or gave notice of a dispute regarding the property, to the administrator.