Patent US4041631A successfully refreshed from Google Patents.
US4041631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visual display board or panel
Assignee: Individual
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Filing: 1975-02-18
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Granted: 1977-08-16
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Expires: 1995-02-18
Abstract
Abstract A visual display panel has a backing sheet and strips integral with the sheet and defining with the sheet channels for receiving pieces of paper or card to be displayed. The panel is initially moulded with the strips extending from the panel at a comparatively obtuse angle, and then the strips are deformed to bring their free edges adjacent the backing sheet. Desirably the strips are each fastened to the backing sheet at an intermediate point between the root and the free edge of the strip.
Inventors
- 👤 Arthur William Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:17
CPC Classifications
G; G09; G09F; G09F7/00; G09F7/02; G09F7/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
105 words
A visual display panel comprising a backing sheet and a plurality of generally parallel strips formed in one-piece therewith, each strip having two longitudinal edges and being integrally joined to the backing sheet at a first one of said edges, the other edge being free and closely adjacent said backing sheet whereby a channel is defined between the backing sheet and the strip, said strips having been initially moulded integrally with said backing sheet so as to jut outwardly therefrom and subsequently being deformed to bring their free edges adjacent said backing sheet and wherein each strip has a further fastening to the backing sheet.
Claim 2
Dependent Claim
105 words
A visual display panel comprising a backing sheet and a plurality of generally parallel strips formed in one-piece therewith, each strip having two longitudinal edges and being integrally joined to the backing sheet at a first one of said edges, the other edge being free and closely adjacent said backing sheet whereby a channel is defined between the backing sheet and the strip, said strips having been initially moulded integrally with said backing sheet so as to jut outwardly therefrom and subsequently being deformed to bring their free edges adjacent said backing sheet and wherein each strip has a further fastening to the backing sheet.
Claim 3
Dependent Claim
9 words
A panel according to claim 1 made of polypropylene.
Claim 4
Dependent Claim
78 words
A visual display panel comprising a backing sheet and a plurality of generally parallel strips formed in one-piece therewith, each strip having two longitudinal edges and being integrally joined to the backing sheet at a first one of said edges, the other edges being free and closely adjacent to said backing sheet whereby a channel is defined between the backing sheet and the strip, each strip having a further fastening to the backing sheet intermediate between said edges.
Claim 5
Dependent Claim
78 words
A visual display panel comprising a backing sheet and a plurality of generally parallel strips formed in one-piece therewith, each strip having two longitudinal edges and being integrally joined to the backing sheet at a first one of said edges, the other edges being free and closely adjacent to said backing sheet whereby a channel is defined between the backing sheet and the strip, each strip having a further fastening to the backing sheet intermediate between said edges.
Claim 6
Dependent Claim
49 words
A panel according to claim 3 wherein each strip has a rib or projection intermediate between said edges, the backing sheet having an undercut recess corresponding to each said rib or projection, and said further fastening is a mechanical interlock between a said rib and a said undercut recess.
Claim 7
Dependent Claim
15 words
A panel according to claim 3 wherein said further fastening is a line of welding.
Claim 8
Dependent Claim
72 words
A panel according to claim 3 wherein the backing sheet is rectangular, having two pairs of opposed edges, one edge of one pair having a longitudinal rib formed thereon and the other edge of that pair having a corresponding longitudinal groove so that a cursor can be slidingly engaged on said rib and said groove, one edge of the other pair having projecting studs formed thereon, the opposed edge having corresponding recesses.
Claim 9
Dependent Claim
16 words
A panel according to claim 3 having strips on only one surface of said backing sheet.
Claim 10
Dependent Claim
32 words
A panel according to claim 3 wherein each strip has an inturned rib at its free edge and the backing sheet has a corresponding longitudinal recess lightly engaged by each said rib.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |