Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7694967 | Dice cup A dice cup for use in dice games involving concealment of the dice, including an open top end and an open bottom end, a closed opaque wall extending therebetween, and a longitudinal axis. A plurality of spaced-apart slats are disposed across the bottom end so as to ... | 04/13/2010 |
| 7185889 | Casino table wagering game and method therefor A method of playing a wagering game where each player is dealt a plurality of playing pieces. Each player will review the playing pieces. A first player will make a call of a total quantity of a numeric suit on all playing pieces. Each successive player will make a ... | 03/06/2007 |
| 6755416 | Die-rolling device and game A die-rolling device for directing game play. The die-rolling device may include an integral timing mechanism that distinctly signals an endpoint of a measured time interval. Furthermore, the die-rolling device may include a die bearing two distinct visual indicator... | 06/29/2004 |
| 6488282 | Game of chance comprising a cup and five flat round pieces, all marked on one side with the plus(+) symbol and with the minus (-) symbol on the other side A game of chance comprising a cup called a cube and five flat round pieces called "duds", which are marked Plus (+) on one side and Minus (-) on the other side. The cube should be preferably made with thick transparent material, to resemble a disposable p... | 12/03/2002 |
| 5885157 | Die, dice game machine, and dice game system A dice game machine using a die in the shape of a regular hexahedron or dodecahedron. Each side of the die has a drawing of a symbol and is provided with a plurality of magnet pins having a pattern identifying the symbol on the opposite side. This die is ... | 03/23/1999 |
| 5308077 | Board game A board game includes a game board over which game pieces move across squares identifying different categories of questions. The game also includes a timer, dice, a dice thrower, and several categories of question cards.... | 05/03/1994 |
| 5024440 | Dice a word A word building game is provided and consists of a plurality of playing cubes each having a letter with a score value on each side thereof. A two minute timer is for timing the play of the game after the cubes are cast upon a flat surface. A player can fo... | 06/18/1991 |
| 5004244 | Memory game A memory development game apparatus including a game board, a playing token, a die, scoring sheets, a timer, a spinner, and initial selection and pairing means comprising a deck of cards and a gaming piece. During a given time interval, players competitiv... | 04/02/1991 |
| 4893816 | Competitive dice and cube game Dice game methods involving three dice and a doubling cube. The methods involve the providing of an objective total count to be reached to win the game, assigning a value to each face of the dice, permitting a first player to continue rolling as long as a... | 01/16/1990 |
| 4489946 | Board game having consistent shape relationship among its parts The board game consists of a central, geometrically shaped goal area with rectangular playing surfaces extending from each side of the goal area. A single tortuous path extends outwardly from the center along each of the rectangular playing surfaces. The ... | 12/25/1984 |
