Patents by Inventor John F. DeCristoforo

John F. DeCristoforo 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).

  • Marble maze board game
    Patent number: 5803452
    Abstract: A marble maze incorporated into a game board. The present invention playing surface is in the form of a maze of bumpers and railings, and a raised central area with indentations, all providing obstacle paths and capture points for playing marbles. Small, elongated sticks for flicking and moving the marbles are also provided.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: September 8, 1998
    Inventor: John F. DeCristoforo