Patents by Inventor John L. Yancy

John L. Yancy 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).

  • Trailer/container unit
    Patent number: 4155471
    Abstract: A separate container and receiving trailer adapted for raising and lowering of a said separate container such that the container may be lowered to the ground and left in a stationary position while the trailer may be towed to other work areas. When desired the trailer may be returned to receive the container and then raised to engage and haul the container to other locations. Further the trailer is adapted for raising one end of the container so as to dump the contents thereof when desired.
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: May 22, 1979
    Inventor: John L. Yancy