Patent US4409277A successfully refreshed from Google Patents.
US4409277A
Expired / Lapsed
US
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Visual information carrier comprising a flexible plastic sheet
Assignee: Hoechst AG
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Filing: 1981-11-09
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Granted: 1983-10-11
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Expires: 2001-11-09
Abstract
Abstract A visual information carrier comprising a single layer sheet of transparent synthetic polymer having dispersed therein a fluorescent dye. The sheet is not subject to white fracture and has profilings on at least one surface, which are produced by deformation of the sheet and which form visually perceivable, colored information.
Inventors
- 👤 Wolfgang Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:08
CPC Classifications
B; B42; B42D; B42D15/00; Y; Y10; Y10S; Y10S273/00; Y10S273/24; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24628; Y10T428/24736; Y10T428/26; Y10T428/268; Y10T428/269; Y10T428/31504; Y10T428/31786; Y10T428/31855; Y10T428/31935; Y10T428/31938
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
59 words
A visual information carrier comprising a single-layer, flexible, transparent, synthetic polymer sheet having a fluorescent dye dispersed therein; said sheet being free from white fracture and having on at least one surface thereof a transparent profiled structure produced by deformation of the sheet; said profiled structure presenting a contrasting visual appearance in comparison to unprofiled regions of said sheet.
Claim 2
Dependent Claim
59 words
A visual information carrier comprising a single-layer, flexible, transparent, synthetic polymer sheet having a fluorescent dye dispersed therein; said sheet being free from white fracture and having on at least one surface thereof a transparent profiled structure produced by deformation of the sheet; said profiled structure presenting a contrasting visual appearance in comparison to unprofiled regions of said sheet.
Claim 3
Dependent Claim
33 words
An information carrier according to claim 1, wherein said sheet comprises said fluorescent dye in an amount ranging from about 0.002 to 1.0% by weight relative to the total weight of the sheet.
Claim 4
Dependent Claim
25 words
An information carrier according to claim 1, wherein said sheet comprises about 0.02% by weight fluorescent dye relative to the total weight of the sheet.
Claim 5
Dependent Claim
25 words
An information carrier according to claim 1, wherein said sheet comprises a synthetic polymer selected from the group consisting of polyvinyl chloride, polyester and polypropylene.
Claim 6
Dependent Claim
17 words
An information carrier according to claim 4, wherein said sheet comprises polyvinyl chloride produced by suspension polymerization.
Claim 7
Dependent Claim
30 words
An information carrier according to claim 1, wherein the fluorescent dye is selected from the group consisting of anthraceno[2,1-m; 1,9 a-n, 9a, 9-a]thioxanthene, Cu-phthalocyanine (Color Index No. 74,160) and N-(n-octadecyl)-benzo[k,1]thioxanthene-3,4-dicarboximide.
Claim 8
Dependent Claim
20 words
An information carrier according to claim 1, wherein said profiled structure is formed on only one side of the sheet.
Claim 9
Dependent Claim
19 words
An information carrier according to claim 1, wherein said profiled structure is formed on both sides of the sheet.
Claim 10
Dependent Claim
23 words
An information carrier according to claim 1, wherein said profiled structure comprises an elongated ridge-shaped projection projecting from the top of said sheet.
Claim 11
Dependent Claim
24 words
An information carrier according to claim 9, wherein said ridge-shaped projection has a triangular cross-section with a vertex angle of about 60° to 80°.
Claim 12
Dependent Claim
22 words
An information carrier according to claim 9, wherein said ridge-shaped projection has a triangular cross-section with a vertex angle of about 70°.
Claim 13
Dependent Claim
21 words
An information carrier according to claim 1, wherein said profiled structure comprises a notch formed in the bottom of said sheet.
Claim 14
Dependent Claim
23 words
An information carrier according to claim 12, wherein said notch has a triangular cross-section with a vertex angle of about 60° to 80°.
Claim 15
Dependent Claim
21 words
An information carrier according to claim 12, wherein said notch has a triangular cross-section with a vertex angle of about 70°.
Claim 16
Dependent Claim
25 words
An information carrier according to claim 1, wherein said sheet has a thickness lying in the range from about 150 μm to about 1,500 μm.
Claim 17
Dependent Claim
23 words
An information carrier according to claim 1, wherein a plurality of discrete profiled structures are arranged to form an individual item of information.
Claim 18
Dependent Claim
20 words
An information carrier according to claim 1, wherein said profiled structure comprises side walls, said side walls being virtually curvature-free.
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) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |