Patent US3239366A successfully refreshed from Google Patents.
US3239366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermotransfer sheet material and copying systems utilizing same
Assignee: Appvion LLC
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Filing: 1961-11-21
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Granted: 1966-03-08
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Expires: 1981-11-21
Abstract
No abstract record available.
Inventors
- 👤 Robert E Miller
- 👤 Cheng James Ke-Jen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:59
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38235; C; C09; C09B; C09B11/00; C09B11/02; Y; Y10; Y10S; Y10S101/00; Y10S101/29; Y10S428/00; Y10S428/913; Y10S428/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THERMOTRANSFER RECORD SHEET MATERIAL ADAPTED FOR MAKING COPIES OF HEAT-BSORBING GRAPHIC DATA ONTO FRCEIVING SHEET MATERIAL BY SUBJECTING SAID GRAPHIC DATA TO HEAT-PRODUCING IRRADIATION WHILE SAID DATA IS HELD IN HEATCONDUCTIVE RELATION WITH SAID THERMOSTRANSFER AND RECEIVING SHEET MATERILS, THE THERMOTRANSFER SHEET MATERIAL COMPRISING (1) A FLEXIBLE INFR-RED-TRANSMITING SUPPORT WEB BASE, AND (2) A THIN LAYER CONTAINING SUBLIMABLE DYE COATED ON ONE SIDE OF SAID BASE, SAID LAYER COMPRISING A MIXTURE OF SUBLIMABLE FINE SOLID PARTICLES OF (A) A LEUCO METHYLENE BLUE DYE, (B) A LEUCAURAMINE COMPOUND, AND (C) A 1,3,3-TRIMETHYL - SPIRO - ((2''H''1''-BENZOPYRAN)-2,2''-INDOLINE) COMPOUND.
Claim 2
Dependent Claim
96 words
THERMOTRANSFER RECORD SHEET MATERIAL ADAPTED FOR MAKING COPIES OF HEAT-BSORBING GRAPHIC DATA ONTO FRCEIVING SHEET MATERIAL BY SUBJECTING SAID GRAPHIC DATA TO HEAT-PRODUCING IRRADIATION WHILE SAID DATA IS HELD IN HEATCONDUCTIVE RELATION WITH SAID THERMOSTRANSFER AND RECEIVING SHEET MATERILS, THE THERMOTRANSFER SHEET MATERIAL COMPRISING (1) A FLEXIBLE INFR-RED-TRANSMITING SUPPORT WEB BASE, AND (2) A THIN LAYER CONTAINING SUBLIMABLE DYE COATED ON ONE SIDE OF SAID BASE, SAID LAYER COMPRISING A MIXTURE OF SUBLIMABLE FINE SOLID PARTICLES OF (A) A LEUCO METHYLENE BLUE DYE, (B) A LEUCAURAMINE COMPOUND, AND (C) A 1,3,3-TRIMETHYL - SPIRO - ((2''H''1''-BENZOPYRAN)-2,2''-INDOLINE) COMPOUND.
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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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |