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 |
| 7143533 | Motor vehicle decal display system A display device for a motor vehicle may comprise at least one housing configured to be disposed within an interior of the motor vehicle and at least one support removably mountable relative to the at least one housing and configured to support an item for display f... | 12/05/2006 |
| 5589814 | Anti-theft vehicle security system Considering the latest vehicle anti-theft systems and anti-theft warning systems that abound today, the theft of vehicles has not been slowed down to any appreciable amount. In fact, the car theft industry lids virtually kept pace with the car manufacturi... | 12/31/1996 |
| 5408232 | Traffic signal device with interchangeable lamps A traffic signal device having a single, continuously-illuminating lamp and several plain reflectors constructed by optical thin film technique to receive the light beam projected from the lamp and respectively reflecting light components of pre-determine... | 04/18/1995 |
| 5212468 | Vehicle signalling system A vehicle signal system for requesting drivers to dim or turn on their vehicles' headlights comprising a signal light for transmitting a high intensity flashing beam to a driver of an oncoming vehicle, a pair of signal lights for transmitting a pair of al... | 05/18/1993 |
| 4851832 | Traffic control device for street vehicles The invention relates to a control device for vehicular street traffic, including a signal disc which consumes very little energy. This signal disc is provided with signal webs separated by deep grooves and with a diffusely reflecting color coating. Pivot... | 07/25/1989 |
| 4825192 | Retractable guard for vehicles A protective guard is provided for a school bus. A series of telescoping members retracts along the front of the bus, and are in a compact form when the bus is moving. When the school bus stops two of the members telescope outwardly in series and extend a... | 04/25/1989 |
| 4152694 | Guide for aiding in backing-up vehicles The guide for aiding in backing-up vehicles includes an extensible and retractable element preferably provided on the right rear fender portion of the vehicle. When the transmission of the vehicle is placed in reverse, the guide is automatically extended ... | 05/01/1979 |
