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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7212615 | Criteria based marketing for telephone directory assistance The current invention is a system for providing telephone directory assistance service in which a telephone user calls to the system and the system will, based on the requested number or type of service, hear a recorded advertisement. The advertisements are selected... | 05/01/2007 |
| 7054657 | Backwards compatible, extended method to execute check number calculation of IMEI A method is taught to provide an improved mobile station International Mobile Equipment Identity (IMEI) code having at least a six digit hexadecimal SNR representation, in conjunction with modifying a Check Digit calculation procedure so as to insure backwards compa... | 05/30/2006 |
| 6535592 | Establishing and managing communications over telecommunication networks A telecommunication system and method for communicating between at least two end users over a telecommunication network, where the communication is defined by a set of parameters. At least two entities, such as one or both of the end users and/or the serv... | 03/18/2003 |
| 6134309 | Pre-paid phone card system with promotional link A method for cooperatively promoting the sale of telephone usage services by a telephone service provider and the sale of goods and/or services such as lottery tickets associated with a lottery game by a lottery services provider. A phone card in accordan... | 10/17/2000 |
| 6028920 | Pre-paid phone card system with promotional link A method for providing telephone service and cooperatively promoting the sale of telephone usage services by a telephone service provider and the sale of goods and/or services such as lottery tickets associated with a lottery game by a lottery service pro... | 02/22/2000 |
| 5909486 | Method and apparatus for awarding and redeeming prepaid telephone time A slot card issued by a slot club, or a membership card in another incentive award program, that is also capable of being used as phone calling card is provided. Free calling time is credited to the member's card account in response to the playing of the ... | 06/01/1999 |
| 5684863 | Telephonic-interface statistical analysis system A system D interfaces with a multiplicity of individual terminals T1-Tn of a telephone network facility C, at the terminals callers are prompted by voice-generated instructions to provide digital data that is identified for positive association with a cal... | 11/04/1997 |
| 5592537 | Method of providing message service for limited access telecommunications The present invention is a method of operating a telecommunication system for providing a limited access message service to a plurality of end users. Existing telecommunication lines with a telecommunication switching network and a computerized central sw... | 01/07/1997 |
| 5561707 | Telephonic-interface statistical analysis system A system D interfaces with a multiplicity of individual terminals T1-Tn of a telephone network facility C, at the terminals callers are prompted by voice-generated instructions to provide digital data that is identified for positive association with a cal... | 10/01/1996 |
| 5504808 | Secured disposable debit card calling system and method A card and associated system and method provides disposable but secure telephone debit cards. Identifying indicia are disposed on the telephone debit card surface, and temporarily covered so that it cannot be visually or photographically detected. After p... | 04/02/1996 |
| 5297802 | Televised bingo game system A system and method to provide a mass audience television game show based on bingo that is played on impulse many times per day. Players use erasable daubers to mark system generated plastic laminated sheets of reusable bingo cards. Entry to the game is b... | 03/29/1994 |
| 5255309 | Telephonic-interface statistical analysis system A system D interfaces with a multiplicity of individual terminals T1-Tn of a telephone network facility C, at the terminals callers are prompted by voice-generated instructions to provide digital data that is identified for positive association with a cal... | 10/19/1993 |
| 5136632 | Telephone service payment system using a sound emitting token A telephone service payment system having portable electronic devices (J) for transmitting a coded sequence (SQ), also involves specialized vocal host computers (SDS) and at least one affiliated computer (OA), along with a management computer (OGC). Such ... | 08/04/1992 |
