Patents by Inventor Robert W. Cannady

Robert W. Cannady 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).

  • Portable vehicle traction device
    Patent number: 4361277
    Abstract: An improved traction device for assisting vehicles when stuck in sand, snow, bog, or the like, incorporates a rigid plate having opposed upper and lower gripping ribs and an appended chain structure having transverse angle iron pieces spaced lengthwise thereof.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: November 30, 1982
    Inventors: Robert W. Cannady, Robert E. Hale