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Class D21/349 - Rectangular or square perimeter


Subclass of Class D21 - Games, toys, and sports goods
Definition: Design that includes four flat sides and 90-degree corners.
No. of patents: 38
Last issue date: 05/29/2012


NumberTitleIssue Date
D660917Three dimensional chess game
05/29/2012
D641428Game board
07/12/2011
D572767Game board
07/08/2008
D567298September 11, 2001 commemorative chess set
04/22/2008
D566783Board game
04/15/2008
D565123Game board
03/25/2008
D564599Game board
03/18/2008
D562911Combined chess game carrier and playing surface
02/26/2008
D556267Collapsible game board and case
11/27/2007
D554197Castle chess board
10/30/2007
D550776Chess board
09/11/2007
D550294Game board
09/04/2007
D550295Game board
09/04/2007
D548797Board game
08/14/2007
D547385Game board
07/24/2007
D536740Chess board
02/13/2007
D525315Board game
07/18/2006
D519163Game surface
04/18/2006
D518858Game
04/11/2006
D518111Chess game
03/28/2006
D517611Combined board game and gaming pieces
03/21/2006
D510604Board game
10/11/2005
D500529Game
01/04/2005
6702287Method of playing an advanced chess game
A method of playing a modified advanced chess game called Super Chess which provides a board having alternating dark and light squares arrayed in a ten-row by eleven-column configuration. The sixteen pieces of the orthodox chess are all provided in each c...
03/09/2004
6279907Spacial game board with spacial chess and spacial checkers
The Spacial Game Board is a contiguous, multi-level (variable quantity and variably locatable in some cases) game board of squares with the quantity of simultaneous players determined by the quantity of squares being played on (2 players~64 squares, 4 pla...
08/28/2001
6260847Oblique chessboard
A chessboard that is oblique like in form for playing conventional chess or checkers. The chessboard is flat two-dimensional and typically kidney shaped with sixty-four identifiable curved playing spaces. Players can play opposite each other or on the sam...
07/17/2001
5865436Themed board game
A playing piece includes a base and an ornamental attachment. At least one aperture within the base is configured to snugly receive a pin within, such that a distal end of the pin extends beyond a top surface of the base. The ornamental attachment include...
02/02/1999
5803457Checkers for teams
A method of playing a two to four person checkerboard game utilizing a traditional game board consisting of 64 equally sized squares in an 8 by 8 matrix known as the battleground. An 8 by 3 matrix, known as a players home base, is attached to each of the ...
09/08/1998
5791650Board game
A novel board game utilizing a two-dimensional board having spaces arranged in orthogonal rows and columns in two alternating contrasting colors. Two dice are used as a chance element. Each player is assigned 12 ordinary pieces in one of the colors and a ...
08/11/1998
5642885Chess-like game
A chess-type board game including sixty chess-type pieces and a checkered game board of fifteen columns and eight rows. A method for playing the game involving nearly two sets of standard chess pieces on either side, a player needing to capture one of his...
07/01/1997
5586762Method of playing a quadrilateral chess game
An expanded game board provides for the play of chess or checkers by from two to four players or teams formed of such players, using the standard rules of chess or checkers as applicable. The chess board comprises a central matrix of eight ranks and eight...
12/24/1996
5577730Flexible vinyl chess mat that converts into a carrying case
This invention consists of a flexible vinyl chess mat having two handles on opposite sides, both disposed in opposing positions to each other and centered on the perimeter of the square shaped chess mat, so that when the chess mat is folded in half, both ...
11/26/1996
5536014Modified chess game
A technique for playing a modified chess game on a modified board, having a foremost playing area of eight square by eight square rows and plurality of marks printed on top of the board. The board possesses alternately colored red and white squares compri...
07/16/1996
5497998Roll up game board and method for making the same
A tambour game board comprising of a series of adjacent rectangular segments each segment having a top and bottom horizontal surface and two side surfaces each being vertical to the top and bottom surfaces. Each segment consisting of a top surface such as...
03/12/1996
5467995More challenging backgammon type game
A game is described which is a modification of the traditional backgammon game. A row of landing zones is placed between the two existing rows and an additional independent roving midman is provided....
11/21/1995
5338041Sports chess game apparatus
A housing having a top wall of a chess board pattern is arranged to selectively receive groupings of chess pieces configured in representative relationship to a respective category of sports to include football, hockey, baseball, and basketball. A transpa...
08/16/1994
5306017Civil war chess
The invention is a game of tactics and strategy, played on a special ten-square by ten-square checkered board of 100 alternately colored squares, with twenty pieces likened to figures of the American Civil War, on each of two opposing sides. Twenty Civil ...
04/26/1994
5160145Apparatus and method of playing a board game
A board game of the kind which includes a checkered board and a set of game-pieces for each player. The game also includes a home (2) for each player taking part, the home being checkered and having a number of squares which corresponds at least to the ma...
11/03/1992
 
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