Patent US4462039A successfully refreshed from Google Patents.
US4462039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic identification card having an improved signature panel
Assignee: BRITISH AMERCAN BANK NOTE Inc
•
Filing: 1982-11-08
•
Granted: 1984-07-24
•
Expires: 2002-11-08
Abstract
Abstract This invention relates to a plastic identification card with an improved signature panel. There is a problem with existig credit cards in that the existing signature can be obscured by printing over with a patch of clay composition similar to that used to provide the original signature panel. A new signature can then be applied. This problem is overcome by providing a signature panel which is sandwiched between the core stock and a protective transparent film. The signature panel comprises a layer of chemicals reactive under the pressure of a signature to release a colored dye conforming with the signature.
Inventors
- 👤 Edward A. Small
- 👤 Geoff C. Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:50
CPC Classifications
B; B42; B42D; B42D25/00; B42D25/40; B42D25/405; B42D25/415; B42D25/425; B42D2033/04; B42D2033/12; B42D2033/24; B42D25/20; B42D25/23; B42D25/30; B42D25/318; B42D25/36; B42D25/378; B42D25/387; B42D25/45; B42D25/465; B42D25/47; Y; Y10; Y10S; Y10S283/00; Y10S283/901; Y10S283/904; Y10S428/00; Y10S428/914; Y10S428/915; Y10S428/916; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24612
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
71 words
An identification card comprising a core stock, a signature panel of a layer of chemicals reactive under pressure to form a dye in a single layer so as to be self-imaging printed on the core stock, a layer of a blocking compound on said layer of chemicals to protect said chemicals from a subsequently applied coating and a coating of polymer which covers and adheres to at least said signature panel.
Claim 2
Dependent Claim
71 words
An identification card comprising a core stock, a signature panel of a layer of chemicals reactive under pressure to form a dye in a single layer so as to be self-imaging printed on the core stock, a layer of a blocking compound on said layer of chemicals to protect said chemicals from a subsequently applied coating and a coating of polymer which covers and adheres to at least said signature panel.
Claim 3
Dependent Claim
16 words
An identification card as in claim 1 in which the polymer coating is an acrylic polymer.
Claim 4
Dependent Claim
73 words
An identification card comprising a core stock, a signature panel on a surface of said core stock and a transparent plastic layer covering at least said signature panel, said signature panel comprising at least one layer of chemicals reactive under the pressure of a signature to release a coloured dye conforming with said signature, said signature panel being framed with an embossment to protect the signature panel during use of the credit card.
Claim 5
Dependent Claim
73 words
An identification card comprising a core stock, a signature panel on a surface of said core stock and a transparent plastic layer covering at least said signature panel, said signature panel comprising at least one layer of chemicals reactive under the pressure of a signature to release a coloured dye conforming with said signature, said signature panel being framed with an embossment to protect the signature panel during use of the credit card.
Claim 6
Independent Claim
99 words
A method of making an identification card comprising applying to a core stock a patch of chemicals reactive under pressure to form a dye in a single layer so as to be self-imaging, said patch being of sufficient size to provide a signature panel, applying a blocking compound adapted to protect the self-imaging reactive chemicals from the monomer in a subsequently applied coating, then applying a coating of a monomer polymerizable to a transparent layer and polymerizing said coating, said application and polymerization steps being conducted without the application of heat or pressure sufficient to affect the self-imaging material.
Claim 7
Independent Claim
99 words
A method of making an identification card comprising applying to a core stock a patch of chemicals reactive under pressure to form a dye in a single layer so as to be self-imaging, said patch being of sufficient size to provide a signature panel, applying a blocking compound adapted to protect the self-imaging reactive chemicals from the monomer in a subsequently applied coating, then applying a coating of a monomer polymerizable to a transparent layer and polymerizing said coating, said application and polymerization steps being conducted without the application of heat or pressure sufficient to affect the self-imaging material.
Claim 8
Dependent Claim
13 words
A method as in claim 4 in which the monomer is acrylic monomer.
Claim 9
Dependent Claim
15 words
A method as in claim 4 in which the application steps are by screen printing.
Claim 10
Dependent Claim
17 words
A method as in claim 4 in which the polymerization step is accomplished by ultra violet light.
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) | 1987-07-24 | 1988-01-23 | 1988-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-24 | 1992-01-23 | 1992-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-24 | 1996-01-23 | 1996-07-24 | $7700.00 | Window Closed / Lapsed |