Patents by Inventor LeRoy L. White

LeRoy L. White has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Door or window guard system
    Patent number: 4631863
    Abstract: A system to prevent unauthorized entry into a room through a door or a window opening. The system includes a grille hinged on one side of the opening and bar means attached at one end to the grille and extending through a port in a wall. Means are provided to hold the bar means against an inner wall to prevent opening the grille.
    Type: Grant
    Filed: August 15, 1984
    Date of Patent: December 30, 1986
    Inventor: LeRoy L. White