US4627642A
Expired / Lapsed
US
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Method of marking for deterring fraud with valuable documents
Assignee: SOTIMAG (SARL) A CORP OF FRANCE
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Filing: 1985-09-05
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Granted: 1986-12-09
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Expires: 2005-09-05
Abstract
Abstract The present invention relates to a method for deterring fraud with documents having monetary value such as a PVC substrate having a signature location on the substrate. In the method, a supporting ink layer 2 including a pigment and containing a product that assures it a certain porosity with respect to the substrate is deposited on the signature location; then a transparent, porous varnish layer 3 including a dissolved powder enabling a fluorescence of the desired color to be obtained under ultraviolet light is deposited on certain zones of the first ink layer 2; next a filigree pattern is printed in zones of either the first ink layer 2 or the varnish layer 3, using a silkscreening process and a second pigmented vinyl ink 4. The signature or identifying mark of the owner of the document is executed using a felt-tip pen having an indelible ink, of the type which is indelible to a product such as that sold under the mark "CORRECTOR". This method makes it possible to reveal any attempt at fraud and makes unauthorized reproductions of the documents more difficult.
Inventors
- 👤 Georges Peronneau
- 👤 Bernard Chalus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:51
CPC Classifications
B; B41; B41M; B41M3/00; B41M3/14; B41M3/144; B42; B42D; B42D25/00; B42D25/40; B42D25/405; B42D25/30; B42D25/318; B42D25/36; B42D25/378; B42D25/387; B42D2033/04; B42D2033/20; B42D2033/30; B42D2035/26; Y; Y10; Y10S; Y10S283/00; Y10S283/904; Y10S428/00; Y10S428/914; Y10S428/915; Y10S428/916; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876; Y10T428/24893; Y10T428/24901; Y10T428/24942
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
192 words
A method for deterring fraud with documents having monetary value comprising a substrate (1) including a predetermined signature location, including the steps of: depositing on the signature location a first supporting layer of ink (2) including a pigment having a predetermined porosity with respect to the substrate; depositing on selected zones of the first supporting layer (2) a porous varnish layer (3), including in solution a powder enabling a fluorescence of a desired color to be obtained under ultraviolet light; printing a filigree pattern on selected zones of the first supporting ink layer (2) and on the varnish layer (3) by silkscreening, using a second pigmented vinyl ink (4); and applying an identifying signature (5) to the card using a felt-tip pen having an indelible ink wherein the porosities of the first ink layer (2) and of the layer (3) are different, and the penetration of the vinyl ink is better on the first ink layer (2) than on the varnish layer (3); and the adherence of the indelible ink on the first ink layer (2) is better than the adherence of the varnish layer (3) on the first ink layer (2).
Claim 2
Independent Claim
192 words
A method for deterring fraud with documents having monetary value comprising a substrate (1) including a predetermined signature location, including the steps of: depositing on the signature location a first supporting layer of ink (2) including a pigment having a predetermined porosity with respect to the substrate; depositing on selected zones of the first supporting layer (2) a porous varnish layer (3), including in solution a powder enabling a fluorescence of a desired color to be obtained under ultraviolet light; printing a filigree pattern on selected zones of the first supporting ink layer (2) and on the varnish layer (3) by silkscreening, using a second pigmented vinyl ink (4); and applying an identifying signature (5) to the card using a felt-tip pen having an indelible ink wherein the porosities of the first ink layer (2) and of the layer (3) are different, and the penetration of the vinyl ink is better on the first ink layer (2) than on the varnish layer (3); and the adherence of the indelible ink on the first ink layer (2) is better than the adherence of the varnish layer (3) on the first ink layer (2).
Claim 3
Dependent Claim
19 words
A method according to claim 1, wherein the powder is a chelate of terbium that provides a green fluorescence.
Claim 4
Dependent Claim
11 words
A card, produced in accordance with the method of claim 2.
Claim 5
Dependent Claim
19 words
A method according to claim 1, wherein the powder is a chelate of dysprosium that provides a yellow fluorescence.
Claim 6
Dependent Claim
11 words
A card, produced in accordance with the method of claim 4.
Claim 7
Dependent Claim
19 words
A method according to claim 1, wherein the powder is of the esculin type that provides a blue fluorescence.
Claim 8
Dependent Claim
11 words
A card, produced in accordance with the method of claim 6.
Claim 9
Dependent Claim
11 words
A card, produced in accordance with the method of claim 1.
Claim 10
Dependent Claim
20 words
A method according to claim 1, wherein the ink of the first layer (2) is vinyl and contains titanium dioxide.
Claim 11
Dependent Claim
14 words
A method according to claim 2, wherein the varnish (3) is transparent and matte.
Claim 12
Dependent Claim
19 words
A method according to claim 9, wherein the powder is a chelate of terbium that provides a green fluorescence.
Claim 13
Dependent Claim
19 words
A method according to claim 9, wherein the powder is a chelate of dysprosium that provides a yellow fluorescence.
Claim 14
Dependent Claim
19 words
A method according to claim 9, wherein the powder is of the esculin type that provides a blue fluorescence.
Claim 15
Dependent Claim
11 words
A card, produced in accordance with the method of claim 9.
Claim 16
Dependent Claim
14 words
A method according to claim 1, wherein the varnish (3) is transparent and matte.
Claim 17
Dependent Claim
19 words
A method according to claim 15, wherein the powder is a chelate of terbium that provides a green fluorescence.
Claim 18
Dependent Claim
19 words
A method according to claim 15, wherein the powder is a chelate of dysprosium that provides a yellow fluorescence.
Claim 19
Dependent Claim
19 words
A method according to claim 15, wherein the powder is of the esculin type that provides a blue fluorescence.
Claim 20
Dependent Claim
11 words
A card, produced in accordance with the method of claim 15.
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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) | 1989-12-08 | 1990-06-09 | 1990-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-08 | 1994-06-09 | 1994-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-08 | 1998-06-09 | 1998-12-09 | $7700.00 | Window Closed / Lapsed |