Patents by Inventor Michael W. Sirk

Michael W. Sirk 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: 5280913
    Abstract: A modified chess game for play by two opposing players comprises a game board eight squares wide and sixteen squares deep, foldable at its midsection to create a carrying case for the pieces. Each player has a playing pieces set consisting of two kings, two queens, four rooks, four knights, four bishops and sixteen pawns. The pieces are positioned as in conventional chess, except that each row is doubled. Playing pieces are moved pursuant to conventional movements and rules of capture, except that pawns may advance two spaces at a time as long as they are in their own territory, and must reach the sixteenth row to be exchanged for any playing piece but the king. The game may be played so that a player wins by capturing both of his opponent's kings, or by capturing only one.
    Type: Grant
    Filed: February 2, 1993
    Date of Patent: January 25, 1994
    Inventor: Michael W. Sirk