Road sign

Details Road sign Road sign

1998-02-03

2000-11-28

Silbermann, Joanne

Card, picture, or sign exhibiting

Signs

Highway or street marker

40560, G09F 1302

Patent

active

061518212

ABSTRACT:
A road sign includes an installation portion provided with a lighting window, a sign display portion that includes a sign member that uses light to display a prescribed sign, and a light-guide structure that guides light entering the lighting window to the sign member to display the sign by reflecting or transmitting the light. The road sign configuration renders the sign clearly visible even when the light comes from car headlights on a low-beam setting.

REFERENCES:
patent: 1756203 (1930-04-01), Lindsey
patent: 1764639 (1930-06-01), Nathansohn
patent: 1807403 (1931-05-01), Gordon
patent: 1811594 (1931-06-01), Powers
patent: 1831532 (1931-11-01), Harris
patent: 3553869 (1971-01-01), Dickinson
patent: 3994086 (1976-11-01), Mizuochi
patent: 4082426 (1978-04-01), Brown
patent: 4726134 (1988-02-01), Woltman
patent: 4846549 (1989-07-01), Gutsche
patent: 5442870 (1995-08-01), Kochanowski

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