Patents by Inventor Terry L. Shaffer

Terry L. Shaffer 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).

  • Pedestrian crossing safety device
    Patent number: 5307251
    Abstract: The present invention provides a relatively lightweight elongated staff having a particularly well arranged strobe light and sign which provides an enhanced warning while maximizing its ease of transportability for the carrier and use.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: April 26, 1994
    Inventor: Terry L. Shaffer