US Patent 7121045 Pre-hanging clip for pre-hung door

A pre-hung door having a door jamb and a door connected to the door jamb. The door has an opening formed therein for receiving door hardware. A pre-hanging door clip is operatively connected to the door and the door jamb to limit relative movement between the door and the door jamb. The pre-hanging door clip includes a movement limiting structure that extends through the opening in the door and that has one end thereof engaged with the door jamb. The pre-hanging door clip also includes a locking member that extends between the door and the door jamb to cooperatively interlock with the one end of the movement limiting structure such that relative movement between the door and the door jamb is limited.