Patents by Inventor Eugene F. Greenleaf

Eugene F. Greenleaf 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).

  • Patent number: 4840400
    Abstract: A gravel shield for hitch trailers of the type having a front tongue frame member for hitching to a towing vehicle. The gravel shield includes a lower portion adapted to cooperate with a portion of the tongue frame, an imperforate front sheet and rear cushioning material. The shield is adapted to be operably disposed so as to cover the lower front portion of the trailer so as to protect same from gravel and other road debris during travel.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: June 20, 1989
    Inventor: Eugene F. Greenleaf