US4287285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for fabricating personal identification documents
Assignee: Eastman Kodak Co
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Filing: 1979-12-17
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Granted: 1981-09-01
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Expires: 1999-12-17
Abstract
Abstract Personal identification documents are fabricated by liquid developing an electrostatic image on a photoconductive insulating member to form a high resolution toner image which includes a visually verifiable feature of the authorized document holder and thermally transferring such image from the photoconductor to a core substrate having general authenticating data or to a cover sheet which is subsequently laminated to such a core substrate.
Inventors
- 👤 Michael W. Mosehauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:45
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/14; B32B37/16; B32B37/18; B32B37/182; B32B37/185; B42; B42D; B42D25/00; B42D25/40; B42D25/405; B42D25/415; B42D25/42; B32B37/22; B32B37/223; B32B38/00; B32B38/14; B42D25/45; G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/1665; G03G15/167; B32B2429/00; B42D2033/04; B42D2033/16; B42D2035/06; B42D2035/08; B42D2035/34; B42D25/455; Y; Y10; Y10S; Y10S283/00; Y10S283/901; Y10S283/904; Y10S428/00; Y10S428/916; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092; Y10T156/1093; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
132 words
A method of personalizing a core substrate of the type containing general authenticating information, said method comprising the steps of: (a) electrophotographically forming an electrostatic image of a visually identifiable personal feature on a photoconductive surface of an imaging member; (b) liquid developing said electrostatic image with toner particles in the size range from about 0.1 micron to about 1.0 micron; and (c) thermally transferring said developed toner image directly from said photoconductive surface to such a core substrate, said transferring step comprises passing the imaging member and such core substrate between the nip of a pair of transfer rollers with the toner image contacting the transfer member, the roller contacting said photoconductor being heated to a temperature greater than about 40° C. and the roller contacting said core substrate being unheated.
Claim 2
Independent Claim
132 words
A method of personalizing a core substrate of the type containing general authenticating information, said method comprising the steps of: (a) electrophotographically forming an electrostatic image of a visually identifiable personal feature on a photoconductive surface of an imaging member; (b) liquid developing said electrostatic image with toner particles in the size range from about 0.1 micron to about 1.0 micron; and (c) thermally transferring said developed toner image directly from said photoconductive surface to such a core substrate, said transferring step comprises passing the imaging member and such core substrate between the nip of a pair of transfer rollers with the toner image contacting the transfer member, the roller contacting said photoconductor being heated to a temperature greater than about 40° C. and the roller contacting said core substrate being unheated.
Claim 3
Dependent Claim
19 words
The invention defined in claim 1 wherein said rollers are urged toward each other to provide nip pressure therebetween.
Claim 4
Dependent Claim
33 words
The invention defined in claim 1 further including the steps of separating the core substrate from said imaging member and laminating a transparent cover sheet over the toner image on said core substrate.
References Cited (Backward Citations)
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US3549447A
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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) | 1984-08-31 | 1985-03-02 | 1985-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-31 | 1989-03-02 | 1989-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-31 | 1993-03-02 | 1993-09-01 | $7700.00 | Window Closed / Lapsed |