Patents by Inventor John H. Stempel

John H. Stempel 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: 4437839
    Abstract: An indicia receiving board, such as a chalkboard, or marker board having a writing surface and a longitudinal folding rail hinged at its ends and projecting forwardly from the bottom of the board. The hinged arrangement provides a rail which may be folded upwardly into close proximity to the plane of the indicia receiving or writing surface and thereby permit the use of a much thinner shipping carton with an appreciably reduced internal packaging support. After a board is removed from its carton, the rail is pivoted about its end hinges to an extended transverse position generally perpendicular to the writing surface of the board and thereby provide a ledge or shelf for chalk, erasers, markers, and/or other indicia affixing and removing articles. The rail is supported in its extended position by substantially coextensive foot means projecting from the inner lower margin of the rail to engage the bottom of the board.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: March 20, 1984
    Inventor: John H. Stempel