Patents by Inventor William J. Chafe

William J. Chafe 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).

  • Roadside emergency signalling device
    Patent number: 4178874
    Abstract: A plastic information and signalling device having a cross-sectional triangular configuration which is adapted to hang over a partially opened vehicle window to communicate to observers the desired information or signal. The device has pockets into which information and signalling signs may be inserted to visibly display the message on these signs. The device is collapsable into a rectangular shape for convenient storage.
    Type: Grant
    Filed: June 13, 1978
    Date of Patent: December 18, 1979
    Inventors: Michael S. Berns, William J. Chafe