US4463970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Security paper having camouflage materials to protect its authenticity features
Assignee: GAO Gesellschaft fuer Automation und Organisation mbH
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Filing: 1981-12-01
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Granted: 1984-08-07
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Expires: 2001-12-01
Abstract
Abstract A data carrier having excitable marking materials to record information in code and further materials to camouflage them, as well as a method of producing this type of data carrier. The coded information is given in the form of the local presence or absence of the excitable marking materials, and is read by detecting the state of excitation, which can only be done with difficulty. The camouflage materials have the function of preventing the detection of the marking material pattern indirectly by means of a chemical laboratory analysis; this camouflage is successful when materials are used which are very similar chemically to the marking materials, and in particular yield the same results as these in a chemical laboratory analysis, but are not excitable with the same means or in the same manner.
Inventors
- 👤 Wittich Kaule
- 👤 Gerhard Schwenk
- 👤 Gerhard Stenzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:29
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/22; B; B41; B41M; B41M3/00; B41M3/14; B41M3/144; D; D21; D21H; D21H21/00; D21H21/14; D21H21/40; D21H21/44; D21H21/48; G; G06; G06K; G06K19/00; G06K19/06; G06K19/08; G06K19/10; G06K19/14; Y; Y10; Y10S; Y10S428/00; Y10S428/919
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
66 words
A data carrier comprising: a substrate; luminescent marking material on said substrate forming coded information, said luminescent marking material comprising chemical elements in a first configuration having a first luminescent characteristic; and camouflaging material on said substrate, said camouflaging material comprising said chemical elements, said same chemical elements being in a second configuration having no luminescence or a luminescent characteristic different from said first luminescent characteristic.
Claim 2
Dependent Claim
66 words
A data carrier comprising: a substrate; luminescent marking material on said substrate forming coded information, said luminescent marking material comprising chemical elements in a first configuration having a first luminescent characteristic; and camouflaging material on said substrate, said camouflaging material comprising said chemical elements, said same chemical elements being in a second configuration having no luminescence or a luminescent characteristic different from said first luminescent characteristic.
Claim 3
Dependent Claim
19 words
The data carrier of claim 1, wherein said coded information is present in the form of a bar code.
Claim 4
Dependent Claim
19 words
The data carrier of claim 1, wherein said coded information is present in the form of a matrix code.
Claim 5
Dependent Claim
24 words
The data carrier of claim 1, wherein said luminescent marking material and said camouflaging material are selected to identify a predetermined value of banknote.
Claim 6
Dependent Claim
40 words
The data carrier of claim 1 wherein said luminescent marking material is present on said substrate in a plurality of locations and said camouflaging material is present on said substrate in locations between the locations of said luminescent marking material.
Claim 7
Dependent Claim
26 words
The data carrier of claim 5, wherein said camouflaging material is present fitting precisely into the intervals which were left open by said luminescent marking material.
Claim 8
Dependent Claim
19 words
The data carrier of claim 6, wherein said coding is impressed into visually recognizable printed forms bearing additional information.
Claim 9
Dependent Claim
30 words
The data carrier of claim 1 wherein said chemical elements of said camouflaging material are present in the same weight ratio as said chemical elements in said luminescent marking material.
Claim 10
Dependent Claim
21 words
The data carrier of claim 1, wherein said luminescent marking material is excitable with invisible light and emits only invisible light.
Claim 11
Dependent Claim
21 words
The data carrier of claim 9, wherein said excitation and emission take place in the infrared range of the optical spectrum.
Claim 12
Independent Claim
54 words
A method of producing a data carrier comprising applying a first marking material to a substrate, said first marking material containing an activatable component, applying a second marking material chemically indistinguishable from said first marking material to said substrate, subjecting said substrate to means for activating said activatable component in said first marking material.
Claim 13
Independent Claim
54 words
A method of producing a data carrier comprising applying a first marking material to a substrate, said first marking material containing an activatable component, applying a second marking material chemically indistinguishable from said first marking material to said substrate, subjecting said substrate to means for activating said activatable component in said first marking material.
Claim 14
Dependent Claim
20 words
The method of claim 11, wherein said first and second marking materials are added to the surface of said substrate.
Claim 15
Dependent Claim
18 words
The method of claim 11, further comprising adding heavy metals as luminescence killers to said second marking material.
Claim 16
Dependent Claim
18 words
The method of claim 11, wherein said subjecting to activation step comprises a temperature treatment of said substrate.
Claim 17
Dependent Claim
23 words
The method of claim 11, wherein said subjecting to activation step comprises a treatment of said substrate to radiation in a predefined range.
Claim 18
Dependent Claim
54 words
A data carrier comprising: a substrate; luminescent marking materials in said substrate forming coded information, said luminescent marking material comprising lanthanide ions containing in host lattices to exhibit characteristic luminescence; and camouflaging material on said substrate, said camouflaging material comprising lanthanide ions having no luminescence or a luminescent characteristic different from said characteristic luminescence.
Claim 19
Dependent Claim
54 words
A data carrier comprising: a substrate; luminescent marking materials in said substrate forming coded information, said luminescent marking material comprising lanthanide ions containing in host lattices to exhibit characteristic luminescence; and camouflaging material on said substrate, said camouflaging material comprising lanthanide ions having no luminescence or a luminescent characteristic different from said characteristic luminescence.
Claim 20
Dependent Claim
24 words
The data carrier of claim 16 wherein said luminescent marking material and said camouflaging material are present in the same locations on said substrate.
Claim 21
Dependent Claim
21 words
The data carrier of claim 16 wherein said luminescent marking material is excitable with invisible light and emits only invisible light.
Claim 22
Dependent Claim
17 words
The data carrier of claim 18 wherein said excitation and emission take place in the infrared range.
Claim 23
Dependent Claim
19 words
The data carrier of claim 16, wherein said coded information discloses data in the form of an account number.
Claim 24
Dependent Claim
21 words
The data carrier of claim 16, wherein said camouflage material contains all, or almost all the rare earth metals in lattices.
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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) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |