6 Pa. Stat. § 13
After satisfying the lien and any costs that may accrue, any residue remaining shall on demand, within six months, be paid to the owner of the property; and if such residue is not demanded within six months from the date of the sale, the same shall be deposited by the person making the sale with the treasurer of the county, together with a statement of the claim and the costs of enforcing the same, a copy of the published notice, and of the amounts received for the goods at said sale. Said residue shall by the county treasurer be credited to the general revenue fund of the county, subject to the right of the owner, or his personal representatives, to reclaim the same at any time within three years from the date of the deposit with the county treasurer.
6 P.S. § 13