Patents by Inventor Keith W. Slone

Keith W. Slone 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).

  • Three dimensional game with political theme
    Patent number: 4280703
    Abstract: A game for play by two persons which includes a three-colored game board divided into squares wherein three-dimensional play is involved. Combinations of chess and checker moves are employed for the game pieces.
    Type: Grant
    Filed: September 27, 1979
    Date of Patent: July 28, 1981
    Inventor: Keith W. Slone