Patents Assigned to Jim Walter Doors North American, Div. of The Celotex Corp.
  • Grille
    Patent number: 4282920
    Abstract: To a grille of standard construction there are added plastic slats to provide a solid barrier creating maximum security and visibility, wherein opposite ends of the added slats are merely crimpled to prevent their removal from the construction. The crimping, however, is not vulnerable to tampering due to their out-of-reach location in the tracking structure of the grille.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: August 11, 1981
    Assignee: Jim Walter Doors North American, Div. of The Celotex Corp.
    Inventor: Paul E. Kremm