US3857192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display device
Assignee: Kleer-Vu Industries Inc
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Filing: 1973-03-12
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Granted: 1974-12-31
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Expires: 1993-03-12
Abstract
Abstract A display device including a backing sheet and a cooperating transparent, flexible protective cover for releasably mounting mementos such as pictures, newsclippings, postcards and similar articles, and a method of manufacturing said device.
Inventors
- 👤 B Mascolo
- 👤 P Mascolo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:46
CPC Classifications
G; G09; G09F; G09F15/00; G09F15/02; B; B32; B32B; B32B37/00; B32B37/12; B32B37/1284; B32B37/1292
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
141 words
A composite sheet consisting essentially of a layer of board having two sides and at least one layer of flexible, transparent film, said film being releasably adhered to a first side of the board by a plurality of lines of pressure sensitive adhesive, said lines of adhesive being intersected by a plurality of grooves formed in the board and formed in the adhesive lines effective to create a plurality of operative adhesive points and a plurality of inoperative adhesive points, wherein the operative adhesive points are co-planar in a first plane and the inoperative adhesive points are co-planar within a second plane offset from the first plane, and wherein said inoperative adhesive points form a controlled and uniform spread of adhesive within said grooves extending beyond saiD operative adhesive points and said operative adhesive points form a controlled and uniform pattern.
Claim 2
Dependent Claim
141 words
A composite sheet consisting essentially of a layer of board having two sides and at least one layer of flexible, transparent film, said film being releasably adhered to a first side of the board by a plurality of lines of pressure sensitive adhesive, said lines of adhesive being intersected by a plurality of grooves formed in the board and formed in the adhesive lines effective to create a plurality of operative adhesive points and a plurality of inoperative adhesive points, wherein the operative adhesive points are co-planar in a first plane and the inoperative adhesive points are co-planar within a second plane offset from the first plane, and wherein said inoperative adhesive points form a controlled and uniform spread of adhesive within said grooves extending beyond saiD operative adhesive points and said operative adhesive points form a controlled and uniform pattern.
Claim 3
Dependent Claim
18 words
The composite sheet of claim 1 in which the operative and inoperative adhesive points define a checkerboard pattern.
Claim 4
Dependent Claim
24 words
The composite sheet of claim 1 in which the board area covered by adhesive ranges from 25 to 35% of the total board area.
Claim 5
Dependent Claim
29 words
The composite sheet of claim 1 in which the total area of the operative adhesive points ranges from 75 to 85% of the total board area covered by adhesive.
Claim 6
Dependent Claim
23 words
The composite sheet of claim 1 in which both sides of the board are formed with operative adhesive points and inoperative adhesive points.
Claim 7
Dependent Claim
24 words
The composite sheet of claim 5 wherein a layer of said film is releasably adhered to both sides of the board by said adhesive.
Claim 8
Dependent Claim
17 words
The composite sheet of claim 1 in which the grooves intersect the adhesive lines at right angles.
Claim 9
Dependent Claim
17 words
The composite sheet of claim 1 wherein said film has a thickness from 0.0015 to 0.005 inch.
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) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |