Patent US4641159A successfully refreshed from Google Patents.
US4641159A
Expired / Lapsed
US
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Protective barrier and method of providing same for thermosensitive sheet
Assignee: NCR Voyix Corp
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Filing: 1985-04-18
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Granted: 1987-02-03
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Expires: 2005-04-18
Abstract
Abstract A thermosensitive sheet includes a support layer or substrate, a thermally reactive coating or layer on the substrate, and an impervious cellulose based layer on the thermally reactive coating. The thermally reactive coating acts as an adhesive for laminating the cellulose based layer and the substrate. A method of providing the protective barrier is also disclosed.
Inventors
- 👤 Paul W. Seitz
- 👤 Maurice W. Lewis
- 👤 Stephen D. Lakes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:02
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B41M5/44
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
67 words
A thermosensitive sheet comprising a substrate, a thermally reactive coating on the substrate, the thermally reactive coating comprising a color forming dye, a wax, a bisphenol, and a binder, and a protective layer on the thermally reactive coating, the protective layer being capacitor tissue of a thickness to enable heat transfer therethrough for forming thermal images, and of translucent material to permit viewing of the thermal images.
Claim 2
Dependent Claim
67 words
A thermosensitive sheet comprising a substrate, a thermally reactive coating on the substrate, the thermally reactive coating comprising a color forming dye, a wax, a bisphenol, and a binder, and a protective layer on the thermally reactive coating, the protective layer being capacitor tissue of a thickness to enable heat transfer therethrough for forming thermal images, and of translucent material to permit viewing of the thermal images.
Claim 3
Dependent Claim
73 words
A thermosensitive sheet comprising a substrate, a thermally reactive coating on the substrate, the thermally reactive coating comprising a color forming dye, a wax, a bisphenol, and a binder, and a protective layer on the thermally reactive coating, the protective layer comprising a capacitor tissue of about 8 to 10 microns in thickness to enable heat transfer therethrough for forming thermal images, and of translucent material to permit viewing of the thermal images.
Claim 4
Dependent Claim
73 words
A thermosensitive sheet comprising a substrate, a thermally reactive coating on the substrate, the thermally reactive coating comprising a color forming dye, a wax, a bisphenol, and a binder, and a protective layer on the thermally reactive coating, the protective layer comprising a capacitor tissue of about 8 to 10 microns in thickness to enable heat transfer therethrough for forming thermal images, and of translucent material to permit viewing of the thermal images.
References Cited (Backward Citations)
US4426422A
Cited
JPS5729491A
Cited
US4388362A
Cited
US4424245A
Cited
US4444819A
Cited
US4370370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |