Patent US4184700A successfully refreshed from Google Patents.
US4184700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Documents embossed with optical markings representing genuineness information
Assignee: Siemens Building Technologies AG
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Filing: 1978-09-01
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Granted: 1980-01-22
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Expires: 1998-09-01
Abstract
Abstract There is disclosed a document comprising a flat support member of non-thermoplastic material at least partly coated with a thermoplastic coating, in which coating are embossed optical markings having a light-modifying relief structure, said markings representing information indicating the genuineness or identity of the document. There is also disclosed a process for producing such a document, and an embossing die for use in such a process.
Inventors
- 👤 David L. Greenaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:20
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/08; G06K19/10; G06K19/16; B; B41; B41M; B41M3/00; B41M3/14; B41M7/00; B42; B42D; B42D25/00; B42D25/30; B42D25/328; G09; G09F; G09F3/00; G09F3/02; G09F3/0291; G09F3/0294; G03; G03H; G03H1/00; G03H1/02; G03H1/024; G03H1/0244; G03H2250/00; G03H2250/40; Y; Y10; Y10S; Y10S283/00; Y10S283/901; Y10S283/902
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
80 words
A document comprising a flat support member of paper or cardboard at least partly coated with a thermoplastic coating, in which coating are embossed optical markings having a relief structure with a line spacing in the range of 0.5 to 100 microns, said markings representing information indicating the genuineness of the document, said markings being machinereadable by means of the light diffraction or refraction caused by the relief structure, and further comprising a thin metallic coating covering said optical markings.
Claim 2
Dependent Claim
80 words
A document comprising a flat support member of paper or cardboard at least partly coated with a thermoplastic coating, in which coating are embossed optical markings having a relief structure with a line spacing in the range of 0.5 to 100 microns, said markings representing information indicating the genuineness of the document, said markings being machinereadable by means of the light diffraction or refraction caused by the relief structure, and further comprising a thin metallic coating covering said optical markings.
Claim 3
Dependent Claim
16 words
A document according to claim 1, further comprising a transparent protective coating covering said optical markings.
Claim 4
Dependent Claim
111 words
A document comprising a flat support member of paper or cardboard at least partly coated with a thermoplastic coating, in which coating are embossed optical markings having a relief structure with a line spacing in the range of 0.5 to 100 microns, said markings representing information indicating the genuineness of the document, said markings being machinereadable by means of the light diffraction or refraction caused by the relief structure, wherein said thermoplastic coating comprises thermoplastic ink printed on said support member in the form of numerical or alpha-numerical characters, the information represented by each of said characters being additionally represented in coded form by the relief structure of each respective character.
Claim 5
Dependent Claim
111 words
A document comprising a flat support member of paper or cardboard at least partly coated with a thermoplastic coating, in which coating are embossed optical markings having a relief structure with a line spacing in the range of 0.5 to 100 microns, said markings representing information indicating the genuineness of the document, said markings being machinereadable by means of the light diffraction or refraction caused by the relief structure, wherein said thermoplastic coating comprises thermoplastic ink printed on said support member in the form of numerical or alpha-numerical characters, the information represented by each of said characters being additionally represented in coded form by the relief structure of each respective character.
Claim 6
Dependent Claim
17 words
A document according to claim 3, further comprising a thin metallic reflection coating covering said optical markings.
Claim 7
Dependent Claim
16 words
A document according to claim 4, further comprising a transparent protective coating covering said optical markings.
Claim 8
Dependent Claim
75 words
A document comprising a flat support member of paper partly coated with a thermoplastic coating, in which coating are embossed optical markings having a relief structure with a line spacing in the range of 0.5 to 10 microns, said markings representing information indicating the genuineness of the document, said markings being machine-readable by means of the light diffraction caused by the relief structure, and further comprising a thin metallic reflection coating covering said optical markings.
Claim 9
Dependent Claim
75 words
A document comprising a flat support member of paper partly coated with a thermoplastic coating, in which coating are embossed optical markings having a relief structure with a line spacing in the range of 0.5 to 10 microns, said markings representing information indicating the genuineness of the document, said markings being machine-readable by means of the light diffraction caused by the relief structure, and further comprising a thin metallic reflection coating covering said optical markings.
Claim 10
Dependent Claim
16 words
A document according to claim 6, further comprising a transparent protective coating covering said optical markings.
References Cited (Backward Citations)
US3055117A
Cited
US3412493A
Cited
US3465627A
Cited
US3643216A
Cited
US3497576A
Cited
US3887742A
Cited
US3814904A
Cited
US4011435A
Cited
US4020278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-21 | 1983-07-23 | 1984-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-21 | 1987-07-23 | 1988-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-21 | 1991-07-23 | 1992-01-22 | $7700.00 | Window Closed / Lapsed |