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US4269892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester ribbon for non-impact printing
Assignee: IBM Information Products Corp
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Filing: 1980-02-04
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Granted: 1981-05-26
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Expires: 2000-02-04
Abstract
Abstract The present invention is concerned with a ribbon for non-impact printing. The ribbon comprises a transfer coating and a substrate which is a polyester resin containing from about 15% to about 40% by weight of electrically conductive carbon black.
Inventors
- 👤 Meredith D. Shattuck
- 👤 William J. Weiche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:30
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/3825; B41J; B41J31/00; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/25; Y10T428/26; Y10T428/266; Y10T428/30; Y10T428/31504; Y10T428/31786; Y10T428/31801
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
32 words
A ribbon for non-impact thermal transfer printing comprising a transfer layer and a substrate comprising a polyester resin containing from about 15% to about 40% by weight of electrically conductive carbon black.
Claim 2
Dependent Claim
32 words
A ribbon for non-impact thermal transfer printing comprising a transfer layer and a substrate comprising a polyester resin containing from about 15% to about 40% by weight of electrically conductive carbon black.
Claim 3
Dependent Claim
17 words
A ribbon as claimed in claim 1 wherein carbon black is present at about 30% by weight.
Claim 4
Dependent Claim
20 words
A ribbon as claimed in claim 1 wherein the substrate is from about 5 to about 35 microns in thickness.
Claim 5
Dependent Claim
15 words
A ribbon as claimed in claim 1 wherein the substrate is about 15 microns thick.
Claim 6
Dependent Claim
23 words
A ribbon as claimed in claim 1 wherein the transfer layer comprises wax or a thermoplastic resin, and carbon black or a dye.
Claim 7
Dependent Claim
42 words
A ribbon for non-impact thermal printing comprising a transfer layer and a substrate which comprises polyester resin which has been cross-linked by reaction with an isocyanate, and which contain from about 15% to about 40% by weight of electrically conductive carbon black.
Claim 8
Dependent Claim
42 words
A ribbon for non-impact thermal printing comprising a transfer layer and a substrate which comprises polyester resin which has been cross-linked by reaction with an isocyanate, and which contain from about 15% to about 40% by weight of electrically conductive carbon black.
Claim 9
Dependent Claim
17 words
A ribbon as claimed in claim 6 wherein carbon black is present at about 30% by weight.
Claim 10
Dependent Claim
20 words
A ribbon as claimed in claim 6 wherein the substrate is from about 5 to about 35 microns in thickness.
Claim 11
Dependent Claim
15 words
A ribbon as claimed in claim 6 wherein the substrate is about 15 microns thick.
Claim 12
Dependent Claim
23 words
A ribbon as claimed in claim 6 wherein the transfer layer comprises wax or a thermoplastic resin, and carbon black or a dye.
References Cited (Backward Citations)
CA692229A
Cited
US2713822A
Cited
US3865626A
Cited
US3570380A
Cited
US3744611A
Cited
US4158715A
Cited
US4103066A
Cited
US4189514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-25 | 1984-11-24 | 1985-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-25 | 1988-11-24 | 1989-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-25 | 1992-11-24 | 1993-05-26 | $7700.00 | Window Closed / Lapsed |