Patent US3685666A successfully refreshed from Google Patents.
US3685666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable display device
Assignee: Individual
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Filing: 1970-11-02
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Granted: 1972-08-22
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Expires: 1990-11-02
Abstract
Abstract A portable display device comprising collapsible frame members which open into a series of rectangles for receiving rectangular panels and extendible legs. Refinements to permit collapsing into a small compact form for easy transportation and with aids to quick and easy set up into a strong and stable display device. Additional features turn the device into a compact still picture or movie theatre. Portable display devices have been available in the past but they leave much to be desired when it comes to true portability, versatility and ease of setting up. They have not folded as compactly as is possible with the present invention; they have not been as versatile in the configurations possible when set up; nor have they been so easy to set up on location.
Inventors
- 👤 Sidney Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:12
CPC Classifications
G; G09; G09F; G09F15/00; G09F15/0068
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
116 words
In a folding display device, the combination of; a plurality of rectangular frames; each of said frames comprising two straight side members and top and bottom hinged members; wherein abutting side members are hinged to each other; wherein said top and bottom members are hinged to said side members and have center hinges to permit the inward folding of said top and bottom members of each of said frames toward one another; wherein said side members are hollow; wherein said side members are provided with longitudinal channel means at the inner edges thereof for receiving rectangular display panels; leg means retractable into said side members; and means for maintaining said leg means in an extended position.
Claim 2
Dependent Claim
116 words
In a folding display device, the combination of; a plurality of rectangular frames; each of said frames comprising two straight side members and top and bottom hinged members; wherein abutting side members are hinged to each other; wherein said top and bottom members are hinged to said side members and have center hinges to permit the inward folding of said top and bottom members of each of said frames toward one another; wherein said side members are hollow; wherein said side members are provided with longitudinal channel means at the inner edges thereof for receiving rectangular display panels; leg means retractable into said side members; and means for maintaining said leg means in an extended position.
Claim 3
Dependent Claim
30 words
A folding display device as set forth in claim 1, and including; longitudinal spring means within said top and bottom members adopted to force said members into a straight relationship.
Claim 4
Dependent Claim
38 words
A folding display device as set forth in claim 1, and including; rib means for guiding said leg means and allowing movement of air within the side members to prevent air-locking of said legs within said side members.
Claim 5
Dependent Claim
29 words
A folding display device as set forth in claim 1, and including; wherein said hinges on said abutting members are double-jointed to permit any angular relationship between adjacent frames.
Claim 6
Dependent Claim
39 words
A folding display device as set forth in claim 1, and including; a spring loaded stop means attached to each of said legs for mating with openings in said side members to position said legs at predetermined extended positions.
Claim 7
Dependent Claim
24 words
A folding display device as set forth in claim 1, and including; lamp braCket means mountable in the upper ends of said side members.
Claim 8
Dependent Claim
23 words
A folding display device as set forth in claim 1, and including; foot pad means for receiving the lower ends of said legs.
Claim 9
Dependent Claim
25 words
A folding display device as set forth in claim 1, and including; rectangular display panels for mounting in said channel means of said side members.
Claim 10
Dependent Claim
20 words
A folding display device as set forth in claim 1, and including; shelf means for mounting across extended bottom members.
References Cited (Backward Citations)
US742394A
Cited
US1578633A
Cited
US2748955A
Cited
US2746822A
Cited
US3415519A
Cited
US3559814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |