Patents by Inventor James W. Ledbetter

James W. Ledbetter 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).

  • Security device for a door
    Patent number: 5474343
    Abstract: A security device is provided for a door in a doorway frame of a building, which consists of an elongated bar. A structure is for mounting the elongated bar in a removable manner within the doorway frame of the building across the door, to positively prevent forced entry from an opposite side of the door.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: December 12, 1995
    Inventor: James W. Ledbetter