Sign plate for illuminated sign

Details Sign plate for illuminated sign Sign plate for illuminated sign

1989-12-21

1991-04-23

Lindsey, Rodney M.

Card, picture, or sign exhibiting

Illuminated sign

40580, 40583, 40542, 40543, G09F 1300

Patent

active

050090194

ABSTRACT:
A sign plate for an illuminated sign having a light source includes an opaque layer on one of its faces which layer is broken by zones corresponding to a configuration of text or figures to be communicated, the zones being covered with fluorescent material, and the surface of the fluorescent material facing the viewer and opposite the light source being covered with a light reflective layer.

REFERENCES:
patent: 1725206 (1929-08-01), Peterson
patent: 1887523 (1932-11-01), Schenkel
patent: 2071239 (1937-02-01), Spencer et al.
patent: 2262930 (1941-11-01), Gasper
patent: 2594903 (1952-04-01), Freedman
patent: 2689917 (1954-09-01), Switzer
patent: 2810225 (1957-10-01), Hardesty
patent: 3583298 (1971-06-01), Swearingen
patent: 3978599 (1976-09-01), Berger
patent: 4424449 (1984-01-01), O'Brill
patent: 4891896 (1990-01-01), Boren

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