Patents by Inventor Stephen C. Lawhon

Stephen C. Lawhon 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).

  • Cutting apparatus and method for separating a vehicle glazing seam
    Patent number: 4819531
    Abstract: A cutting tool includes a blade assembly with a blade mounted on a handle. A winch assembly is connected to the blade assembly and includes a cable wound on a drum. The drum is advanced by a drive ratchet subassembly and is connected at its free end to a hook. A method of separating a seam with the cutting tool includes the steps of anchoring the cable, inserting the blade in the seam and retracting the cable with respect to the blade whereby the blade is advanced through the seam.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: April 11, 1989
    Inventor: Stephen C. Lawhon