Card – picture – or sign exhibiting – Illuminated sign – Lamp box
Patent
1985-09-30
1988-08-23
Swiatek, Robert P.
Card, picture, or sign exhibiting
Illuminated sign
Lamp box
40465, G09F 1304
Patent
active
047650800
ABSTRACT:
An illuminated information display apparatus comprising: a rectangular frame member having top, bottom and side walls defining an elongated housing having at least one open face; grooves provided in opposing marginal edges of the top and bottom walls of the housing and extending the length thereof; a plurality of interlocking indicia bearing plate members sized to be slidably received in the opposed grooves, the plate members having light transmitting and blocking portions thereon; a source of illumination mounted interiorly of the housing; and a photoelectric cell connected to the source of illumination and exposed to ambient light conditions for selectively activating and deactivating the source of illumination at predetermined states of ambient light.
REFERENCES:
patent: 733800 (1903-07-01), Beugler
patent: 871510 (1907-11-01), Kerr
patent: 1447918 (1923-03-01), Zacher
patent: 1448881 (1923-03-01), Theis
patent: 1836669 (1931-12-01), Koch
patent: 2245885 (1941-06-01), Webster
patent: 3742633 (1973-07-01), Palm
patent: 3748018 (1973-07-01), Borden, Jr.
patent: 3864861 (1975-02-01), Hill, Jr.
patent: 4254457 (1981-03-01), Lordier
patent: 4387522 (1983-06-01), Sommers-Szoszky
patent: 4553345 (1985-11-01), Bercier et al.
patent: 4587753 (1986-05-01), Harper
Stone Cary E.
Swiatek Robert P.
LandOfFree
Illuminated information display apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Illuminated information display apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Illuminated information display apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-828940