Illuminant display device and motor license plate using same

Details Illuminant display device and motor license plate using same Illuminant display device and motor license plate using same

1979-04-23

1981-03-17

Pitrelli, John F.

Card, picture, or sign exhibiting

License plates

Illuminated

315360, G09F 1308

Patent

active

042558875

ABSTRACT:
The disclosed illuminant display device is to be used on a motor vehicle for publicity or other purposes. In the device an opaque plate member contains perforations in the shape of a character or figure to be displayed, and tinted translucent pieces are set in the perforations transmit light which is projected from a light source provided behind the perforated plate. The display device can serve as an illuminant license plate which is arranged to illuminate the identifying characters continuously for a predetermined time period after the headlight or parking light of the motor vehicle has been turned off and thereby foil a driver who tries to conceal the identity of the vehicle by turning off the lights for hit-and-run or other unlawful purposes.

REFERENCES:
patent: 1250644 (1917-12-01), Pelton
patent: 1363893 (1920-12-01), Merkle
patent: 1368026 (1921-02-01), Diver
patent: 1457206 (1923-05-01), Benjamin
patent: 1471337 (1923-10-01), Johnson
patent: 1538491 (1925-05-01), Reed
patent: 1667126 (1928-04-01), Martin
patent: 1800603 (1931-04-01), Carlson
patent: 1884049 (1932-10-01), McCormack
patent: 2156806 (1939-05-01), Ducey
patent: 2608013 (1952-08-01), Marsala
patent: 3521391 (1970-07-01), Murai
patent: 4122371 (1978-10-01), Talmage et al.

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