Patents by Inventor Willard M. Davidson, Jr.

Willard M. Davidson, Jr. 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 security device
    Patent number: 4607870
    Abstract: A security device for mounting to a door, the device having a floor-contacting member to prevent the door from being forced open when the device is engaged. The device is slidably and pivotably mounted to the face of the door so as to be engageable and disengageable with one hand without excessive bending or stooping. When not in use, the device stores flush against the lower portion of the door.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: August 26, 1986
    Inventors: Edward T. Crisp, Jr., Willard M. Davidson, Jr.
  • Door security brace
    Patent number: D290579
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: June 30, 1987
    Inventors: Edward T. Crisp, Jr., Willard M. Davidson, Jr.