Patents by Inventor Robert J. Zeffero

Robert J. Zeffero 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).

  • Cargo box liner for pick-up trucks
    Patent number: 4047749
    Abstract: A cargo box liner for a pick-up truck formed of a molded polyethylene plastic. The liner has a unitary body for the cargo box and a separate panel on the tailgate. The vertical walls of the liner have elongated vertical ribs to compensate for the tendency of polyethylene to become wavy when exposed to sunlight.
    Type: Grant
    Filed: June 23, 1976
    Date of Patent: September 13, 1977
    Assignee: Zefflamb Industries, Inc.
    Inventors: Robert H. Lambitz, Robert J. Zeffero
  • Cargo box liner for pickup trucks
    Patent number: D249494
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: September 19, 1978
    Assignee: Zefflamb Industries, Inc.
    Inventors: Robert H. Lambitz, Robert J. Zeffero