Electronic warning system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 23, 2000
Grant Date -
N/A
app pub date -
Dec 8, 1997
filing date -
Jan 2, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic warning system made up of illuminated and colored placards for trailers carrying hazardous materials. The colored placards are changed as desired to signal different hazardous loads by a computerized control unit located in the cab. The placards are based on display panels of either light emitting diodes or liquid crystal. A remote mobile control unit can also be employed by itself or in conjunction with the cab's control unit to operate at least four colored placards on each side of a trailer to collectively identify the hazardous cargo being transported in compliance with federal regulations.
First Claim
Family
International Classification(s)
Cited Art Landscape
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