231 Pa. Code Rule 2302
At any time during the pendency of an action, the court, of its own motion or upon petition of a defendant, may interplead the plaintiff and one or more claimants not parties of record. More than one claimant may be interpleaded.
The provisions of this Rule 2302 adopted July 10, 1939, effective January 22, 1940; amended April 18, 1975, effective immediately, 5 Pa.B. 1820.