US4316337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated display assembly
Assignee: Individual
•
Filing: 1980-03-10
•
Granted: 1982-02-23
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Expires: 2000-03-10
Abstract
Abstract A display device which is provided with one or more opaque display frames for mounting information to be displayed. The or each display frame is provided with one or more transparent areas at which display members containing selected information for display are detachably secured. The display members are opaque with the exception of the information contained thereon to block-off light passing through the transparent areas but not through the information on the members so that the opaque masking effect produced enhances the display to an observer when the display device is suitably illuminated.
Inventors
- 👤 Daniel D. Da Costa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:21
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/04; G09F13/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
190 words
A display device comprising a display frame having a front viewing side and a rear side for receiving illuminating light; said display frame being opaque and having plural transparent portions provided for the transmission of light through said transparent portions of the display frame; a display member containing selected information for display detachably secured to the display frame at each of said transparent portions thereof, said display members being opaque to block-off the associated transparent portion of the frame to the transmission of light, with the exception of the information thereon, the information on at least one of the display members being non-opaque, a backing layer of adhereably attractive material attached to said rear side of the display frame to which can be removably attached said display members, and a sheet of translucent coloured material positioned on said backing layer behind at least one of said display members, whereby when said rear face is under illumination light is transmitted solely through said information and is enhanced to an observer of said front side of the masking effect of the surrounding opacity of the display frame and the associated display member.
Claim 2
Dependent Claim
190 words
A display device comprising a display frame having a front viewing side and a rear side for receiving illuminating light; said display frame being opaque and having plural transparent portions provided for the transmission of light through said transparent portions of the display frame; a display member containing selected information for display detachably secured to the display frame at each of said transparent portions thereof, said display members being opaque to block-off the associated transparent portion of the frame to the transmission of light, with the exception of the information thereon, the information on at least one of the display members being non-opaque, a backing layer of adhereably attractive material attached to said rear side of the display frame to which can be removably attached said display members, and a sheet of translucent coloured material positioned on said backing layer behind at least one of said display members, whereby when said rear face is under illumination light is transmitted solely through said information and is enhanced to an observer of said front side of the masking effect of the surrounding opacity of the display frame and the associated display member.
Claim 3
Dependent Claim
33 words
A display device as claimed in claim 1 wherein a further sheet of acetate is superimposed on said backing layer and over said coloured sheet of acetate, and being of a different colour.
Claim 4
Dependent Claim
37 words
A display device as claimed in claim 1 wherein the or each display frame is formed from a sheet of clear acrylic which is made opaque over its entire surface with the exception of said transparent portions.
Claim 5
Dependent Claim
22 words
A display device as claimed in claim 1 wherein said display member is in the form of a strip of photographic negative.
Claim 6
Dependent Claim
29 words
A display device as claimed in claim 1 wherein said display member is in the form of a strip of clear acetate with the information in reverse print thereon.
Claim 7
Dependent Claim
19 words
A display device as claimed in claim 4 or 5 wherein said strips are individual letters of the alphabet.
Claim 8
Dependent Claim
34 words
A display device as claimed in claim 6 said strips have extended opaque border portions so that different strips bearing selected words or letters can be laid in overlapping formation at said mounting positions.
Claim 9
Dependent Claim
55 words
A display device as claimed in claim 1 wherein a plurality of said display frames are removably mounted over cut-outs in a wall of a box display formed of sheet steel, the cut-outs being filled with pearl acrylic sheets to form a light diffuser for light emitted by light means mounted within the box display.
References Cited (Backward Citations)
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Cited
US2586039A
Cited
US2556779A
Cited
US2845734A
Cited
US2906047A
Cited
US2896351A
Cited
US3431666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-22 | 1985-08-24 | 1986-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-22 | 1989-08-24 | 1990-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-22 | 1993-08-24 | 1994-02-23 | $7700.00 | Window Closed / Lapsed |