Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 6939256 | Concave playing surfaces The invention relates to new tools for a new game. The invention consists of a thin solid object, as can be obtained by slicing a cylindrical crown parallel to its axis, and of a net, which can separate the surface in two parts. This solid object is placed concave s... | 09/06/2005 |
| 6217025 | Game apparatus A game apparatus that has a goal corresponding to the number of a player and is designed to cause the player to move a target to the goal in a playing field. The game apparatus has a plurality of tossing devices disposed on the playing field for tossing a... | 04/17/2001 |
| 5695194 | Domed Game Device A domed game including a transparent dome mounted to a hollow base with game balls enclosed therein. The base has a top surface comprising a shoulder and a concave cavity. A plurality of ball recesses are arranged along the shoulder. A colored lever is as... | 12/09/1997 |
| 4973056 | Simulated basketball game A simulated basketball game includes a play surface having baskets at its opposite ends and defining a plurality of ball shooting-position openings each of which overlies a ball propelling paddle. The ball propelling paddles are selectively interconnected... | 11/27/1990 |
| 4796891 | Musical puzzle using sliding tiles A puzzle of the type having an array of movable tiles enclosed and supported by a frame structure includes circuitry for producing sound to identify each of the tiles. Each tile is formed with contact terminals formed on a surface that confronts a support... | 01/10/1989 |
| 4385763 | Pattern forming ball game A game comprises a closed container having a transparent top wall and a bottom wall formed with a number of holes therethrough, there being a plurality of differently-colored balls disposed within the container and manipulatable by the player's finger tip... | 05/31/1983 |
| 4297807 | Toy game bank A toy game bank which may be used an an amusement and educational apparatus for children, and a conversation piece for adults. The toy game bank includes a supporting base member which contains an interior chamber for coins, a vertical wall member which i... | 11/03/1981 |
| 4253669 | Game apparatus with object receiving receptacles and object engaging member A game apparatus includes a stationary base with a playing surface and housing rotatably mounted thereon in driving engagement with a spring motor. The playing surface includes a hemispherical central portion and a centrally mounted chute for dropping pla... | 03/03/1981 |
| 4186926 | Game with upstanding transparent enclosure and movable firing means An amusement device for use by opposing players includes an upstanding enclosure having spaced apart transparent side walls permitting the interior to be viewed by players on opposite sides. The enclosure includes a bottom wall with a pair of spaced apart... | 02/05/1980 |
| 4186927 | Pneumatic projector game with central target A competitive game device employing propulsion means suitable for propelling table tennis balls toward a target suitable for receiving such balls. The target is located in a field having sloping contours for guiding balls which have missed the target to r... | 02/05/1980 |
| 4136872 | Game employing liquid movement to move a playing piece A game capable of being played by two different persons can be constructed so as to employ a transparent housing serving to hold a fluid. A movable member having a specific gravity greater then the specific gravity of the fluid is located within the housi... | 01/30/1979 |
| 4119315 | Competitive action playing game with erratically movable playing piece A competitive action playing game with a shiftable ball-type playing piece. The playing game comprises a game board having a pair of oppositely spaced player ends with a frame peripherally surrounding the game board. The game board is provided with a plur... | 10/10/1978 |
| 4079937 | Combination pipe and game A combination game and tobacco smoking device is disclosed. The device includes a base supporting a transparent air-tight chamber and a pipe bowl. A smoking tube communicates with both the pipe bowl and chamber to permit the user to draw smoke from the bo... | 03/21/1978 |
| 3994498 | Game apparatus A game playable on the theme of checkers or the like. A frame structure has a raised playing surface with a plurality of apertures therein in a predetermined pattern. A plurality of balls, larger in diameter than the apertures and color coded for opposing... | 11/30/1976 |
