Patent US4005537A successfully refreshed from Google Patents.
US4005537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fold-a-board
Assignee: Individual
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Filing: 1975-03-11
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Granted: 1977-02-01
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Expires: 1995-03-11
Abstract
Abstract A framework that is readily foldable so that it can be stored in a minimum space and which is adaptable for various different uses such as a barricade or for displaying a sign; the device consisting of a saw-horse-like structure upon which there is surmounted a rectangular frame in which a sign panel can be fitted for display.
Inventors
- 👤 Peter A. von Camber
- 👤 George Spector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:57
CPC Classifications
G; G09; G09F; G09F7/00; G09F7/18; E; E01; E01F; E01F13/00; E01F13/02; G09F1/00; G09F1/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
165 words
In a fold-a-board, the combination of a foldable framework for standing on a ground surface and an upper frame secured symmetrically thereupon for holding a first sign panel, said framework including a lower frame for holding a second sign panel, said upper frame being pivotally secured to the framework along a central longitudinal axis including means for disposing the framework in a triangular shaped supporting position and pivotally folding said framework upwards on either side of the upper frame to assume a folded position, wherein said means comprises spaced pairs of hinges fixedly secured to said upper frame and pivotally secured to pairs of legs disposed below said upper frame, wherein said pairs of legs from a triangular base in said supporting position and can be pivoted upward to a folded position with the upper frame adjacent to said legs wherein one pair of legs include the second said frame mounted thereon, wherein the frames include rear pockets with inflatable means for retaining signs therein.
Claim 2
Dependent Claim
165 words
In a fold-a-board, the combination of a foldable framework for standing on a ground surface and an upper frame secured symmetrically thereupon for holding a first sign panel, said framework including a lower frame for holding a second sign panel, said upper frame being pivotally secured to the framework along a central longitudinal axis including means for disposing the framework in a triangular shaped supporting position and pivotally folding said framework upwards on either side of the upper frame to assume a folded position, wherein said means comprises spaced pairs of hinges fixedly secured to said upper frame and pivotally secured to pairs of legs disposed below said upper frame, wherein said pairs of legs from a triangular base in said supporting position and can be pivoted upward to a folded position with the upper frame adjacent to said legs wherein one pair of legs include the second said frame mounted thereon, wherein the frames include rear pockets with inflatable means for retaining signs therein.
Claim 3
Dependent Claim
169 words
The combination as set forth in claim 1 wherein both said frames are rectangular in shape and are made of angle iron members so to form a pocket on a rear side in which said sign panels are placeable, said framework and means comprising threeleaf hinges secured to an underside of a lower horizontal angle iron member of said upper frame, a center leaf of said hinges being affixed near each end of said member underside, a leg attached to the end leaves of each said hinge, a brace on at least one leg hooking over a projecting pin on another leg so to retain said framework upright, and said lower frame being secured between a pair of said legs, wherein said inflatable means comprises an inflatable rubber tube is secured within each said pocket, an air valve and hose secured to each said tube being connected to an air bellows, each said air bellows being secured between said angle iron lower member underside and one of said legs.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-01 | 1980-08-02 | 1981-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-01 | 1984-08-02 | 1985-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-01 | 1988-08-02 | 1989-02-01 | $7700.00 | Window Closed / Lapsed |