Patents by Inventor William P. Sampey

William P. Sampey 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).

  • Concrete road paving assembly
    Patent number: 4289421
    Abstract: An assembly for paving concrete roads and other similar areas is disclosed having a width adjustable screed attached to a lightweight frame structure and utilizing mechanical vibrators in conjunction with a crown-shape finishing pan to produce a finished concrete road.
    Type: Grant
    Filed: June 11, 1979
    Date of Patent: September 15, 1981
    Inventors: William P. Sampey, Larry A. Sampey, Sr.