Patents by Inventor Robert A. Metzler, Jr.

Robert A. Metzler, Jr. 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).

  • Chess word game
    Patent number: 4188035
    Abstract: A game for one or two players comprising a conventional chessboard; pawns and play pieces of two colors having on their front side a different three-dimensional symbol, each symbol representing one of the chess pieces of a chess set and on their back side a slot adapted to removably hold an insert having a letter imprinted thereon above a representation of the symbol appearing on the front of the piece.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: February 12, 1980
    Inventor: Robert A. Metzler, Jr.