Patent US5644352A successfully refreshed from Google Patents.
US5644352A
Expired / Lapsed
US
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Multicolor heat-sensitive verification and highlighting system
Assignee: MOORE WALLACE USA LLC
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Filing: 1996-03-06
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Granted: 1997-07-01
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Expires: 2016-03-06
Abstract
Abstract A document capable of providing multiple colors under the application of heat comprising a support having at least one surface bearing a first coating comprising a substantially colorless, heat activatable chromogenic composition capable of producing a first color under the application of heat, and a second coating comprising a localized coating of a substantially colorless, heat activatable chromogenic composition capable of producing a second color under the application of heat. Each chromogenic composition comprises a chromogenic compound and a color developer that are substantially colorless solids in physical contact prior to reaction, but which can chemically react to produce a visible colored image by application of heat at temperatures above room temperature. Under the application of heat from a thermal printer, by quickly striking the chromogenic composition with a fingernail or blunt object to produce frictional heat, or other heat application, multicolored images are provided.
Inventors
- 👤 John C. H. Chang
- 👤 Eric B. Wendler
- 👤 Vance P. Gregory, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:19
CPC Classifications
B; B41; B41M; B41M3/00; B41M3/14; B41M3/142; B41J; B41J2/00; B41J2/315; B41J2/32; B41M5/00; B41M5/26; B41M5/34; B42; B42D; B42D25/00; B42D25/20; B42D25/29; B44; B44F; B44F1/00; B44F1/08; B44F1/10; G; G07; G07D; G07D7/00; G07D7/003; G07D7/14; G09; G09F; G09F3/00; G09F3/02; G09F3/0291; Y; Y10; Y10S; Y10S283/00; Y10S283/902; Y10S283/904
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
206 words
A printing system for producing printed multicolor receipts capable of authentication comprising a heated printing stylus for producing a visible image upon application of heat from said heated printing stylus to a heat activatable chromogenic composition, a receipt form comprising a support having at least one surface bearing a first coating comprising a substantially colorless, heat activatable, non-pressure sensitive chromogenic composition capable of producing a first color under the application of heat, and a second coating comprising a localized coating of a substantially colorless, heat activatable, non-pressure sensitive chromogenic composition capable of producing a second color under the application of heat, said first and second coatings being non-coextensive, each of said first and second coatings being at least partially exposed, said first color being different from said second color, each said chromogenic composition comprising a chromogenic compound and a color developer, said chromogenic compound and said color developer being substantially colorless solids in physical contact prior to reaction, but which can chemically react to produce a visible colored image by application of heat at temperatures above room temperature, said heated printing stylus forming a visible, colored image by means of the heat applied by said heated printing stylus upon contact with said first and second coatings.
Claim 2
Dependent Claim
206 words
A printing system for producing printed multicolor receipts capable of authentication comprising a heated printing stylus for producing a visible image upon application of heat from said heated printing stylus to a heat activatable chromogenic composition, a receipt form comprising a support having at least one surface bearing a first coating comprising a substantially colorless, heat activatable, non-pressure sensitive chromogenic composition capable of producing a first color under the application of heat, and a second coating comprising a localized coating of a substantially colorless, heat activatable, non-pressure sensitive chromogenic composition capable of producing a second color under the application of heat, said first and second coatings being non-coextensive, each of said first and second coatings being at least partially exposed, said first color being different from said second color, each said chromogenic composition comprising a chromogenic compound and a color developer, said chromogenic compound and said color developer being substantially colorless solids in physical contact prior to reaction, but which can chemically react to produce a visible colored image by application of heat at temperatures above room temperature, said heated printing stylus forming a visible, colored image by means of the heat applied by said heated printing stylus upon contact with said first and second coatings.
Claim 3
Dependent Claim
15 words
The printing system of claim 1, wherein said second coating partially overlaps said first coating.
Claim 4
Dependent Claim
17 words
The document of claim 1, wherein said second coating forms a stripe configuration on said first coating.
Claim 5
Dependent Claim
16 words
The printing system of claim 1, wherein said receipt form is a cash register receipt form.
Claim 6
Dependent Claim
16 words
The printing system of claim 2, wherein said receipt form is a cash register receipt form.
Claim 7
Dependent Claim
15 words
The printing system of claim 2, wherein said receipt form is an ATM receipt form.
Claim 8
Dependent Claim
20 words
The printing system of claim 2, wherein said heated printing stylus is the stylus of a computer controlled thermal printer.
Claim 9
Dependent Claim
21 words
The printing system of claim 2, wherein said color developer has a softening point of about 40° to about 200° C.
Claim 10
Dependent Claim
22 words
The printing system of claim 8, wherein said color developer has a softening point of from about 50° to about 80° C.
Claim 11
Dependent Claim
56 words
The printing system of claim 2, wherein said receipt form is provided with multiple, additional coatings each comprising a localized coating of a substantially colorless, heat activatable, non-pressure sensitive chromogenic composition capable of producing a color under the application of heat, said multiple additional coatings being configured with said second coating to form a geometric pattern.
Claim 12
Dependent Claim
23 words
The printing system of claim 10, wherein said geometric pattern is a continuous, longitudinal stripe which when heated can produce a multicolor stripe.
Claim 13
Dependent Claim
18 words
The printing system of claim 2, wherein said first color is black and said second color is red.
Claim 14
Dependent Claim
18 words
The printing system of claim 2, wherein said receipt form is in the form of a continuous roll.
Claim 15
Dependent Claim
18 words
The printing system of claim 2, wherein each said chromogenic composition further comprises an activation temperature suppressant material.
Claim 16
Dependent Claim
51 words
The printing system of claim 14, wherein said activation temperature suppressant material is selected from the group consisting of stearic acid amide, stearic acid methylene bisamide, oleic acid amide, palmitic acid amide, coconut fatty acid amide, dibenzylterephthalate, p-benzyl biphenyl, betanaphthol benzyl ether, ethylene glycol-m-tolyl ether, di(p-chlorobenzyl)oxalate, dibenzyl oxalate and di(p-methylbenzyl) oxalate.
Claim 17
Dependent Claim
22 words
The printing system of claim 2, wherein said substantially colorless, heat activatable chromogenic composition of said second coating additionally comprises titanium dioxide.
Claim 18
Dependent Claim
42 words
The printing system of claim 16, wherein said receipt form is a cash register receipt form, said first coating fully covers said support of said receipt form, and said second coating is in the form of a stripe on said first coating.
Claim 19
Dependent Claim
18 words
The printing system of claim 2, wherein said first coating fully covers said support of said receipt form.
References Cited (Backward Citations)
US2235791A
Cited
US2374862A
Cited
US2929736A
Cited
US3713861A
Cited
US3829133A
Cited
US3924049A
Cited
US3914511A
Cited
US4037007A
Cited
US4186020A
Cited
GB1520919A
Cited
US4183989A
Cited
US4183989B1
Cited
DE2722427A1
Cited
US4210346A
Cited
US4109047A
Cited
US4303307A
Cited
US4175774A
Cited
US4175774B1
Cited
US4334771A
Cited
US4197346A
Cited
US4488646A
Cited
US4376887A
Cited
DE2913321A1
Cited
US4457540A
Cited
US4427985A
Cited
US4360548A
Cited
US4425386B1
Cited
US4425386A
Cited
US4505498A
Cited
US4903991A
Cited
US4638340A
Cited
US4760048A
Cited
US4663641A
Cited
US4665410A
Cited
US4865939A
Cited
JPS61248784A
Cited
US4861749A
Cited
US4894359A
Cited
GB2188283A
Cited
JPS62227794A
Cited
US4846502A
Cited
US4726608A
Cited
US4816367A
Cited
US4935401A
Cited
US4851383A
Cited
US4833122A
Cited
US5039652A
Cited
US4906604A
Cited
US4898849A
Cited
US5001104A
Cited
JPH02122995A
Cited
US4873219A
Cited
US4985331A
Cited
WO1991000390A1
Cited
US5120702A
Cited
US4999334A
Cited
US5083816A
Cited
US5260252A
Cited
US5209515A
Cited
US5193854A
Cited
US5288107A
Cited
CA2122693A1
Cited
US5524934A
Cited
US5462909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-06-30 | 2000-12-30 | 2001-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-06-30 | 2004-12-30 | 2005-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-06-30 | 2008-12-30 | 2009-07-01 | $7700.00 | Window Closed / Lapsed |