Patents by Inventor William Angerbrandt

William Angerbrandt 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).

  • Patent number: 5676410
    Abstract: A home security device comprising a first attachment device, mounted on a distal end of a first rigid arm, adapted to be removably secured to a door or window, a second attachment device, mounted on a distal end of a second rigid arm, adapted to be removably secured to a floor or wall adjacent to the door or window, proximal ends of the first and second rigid arms positioned end to end forming a substantially straight line, and a fastening device, releasably holding the proximal ends in position, adapted to remain secure against force exerted at the distal ends of the rigid arms and to release the proximal ends from position in response to force exerted near the proximal ends and substantially perpendicular to the axis of the rigid arms.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: October 14, 1997
    Inventor: William Angerbrandt