72 Pa. Stat. § 3490.1
If the institution, corporation or unincorporated association is a hospital or museum and shall utilize said real estate and erections, constructions and other permanent improvements aforesaid for the purpose for which the appropriation was made for the term of twenty years from the date of entry of said certificate in said docket and shall so certify to the prothonotary upon affidavit of the chief officer of said hospital or museum, the prothonotary shall mark said lien as satisfied in full upon said docket and indices. The hospital or museum shall pay the prothonotary the sum of five dollars for satisfaction of said lien. A copy of said certification shall be transmitted to the State Treasurer by such hospital or museum.
The provisions of this section shall apply to all such liens heretofore or hereafter created, whether under authority of the act herein amended or under the authority of any act making a specific appropriation to any such institution.
72 P.S. § 3490.1