US3219470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat sensitive copying layers
Assignee: Agfa Gevaert NV
•
Filing: 1963-01-28
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Granted: 1965-11-23
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Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Lassig Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:52
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/02; C09B23/04; B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/323; C07; C07D; C07D277/00; C07D277/02; C07D277/20; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/3179; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A DRY HEAT SENSITIVE COPYING MATERIAL FOR THE PRODUCTION OF A COLOURED PRINT-OUT IMAGE ON EXPOSURE TO RADIANT HEAT COMPRISING A SHEET-LIKE MATERIAL CONTAINING THE COLOURLESS STARTING COMPOUNDS FOR A COLOURFORMING CHEMICAL REACTION BEING INITIATED BY THE IMAGEWISE APPLICATION OF HEAT, THE SAID STARTING COMPOUNDS HAVING A BOILING POINT OF ABOVE 100*C., THE SAID STARTING COMPOUNDS BEING SELECTED FROM THE GROUPS CONSISTING OF (A) (1) A 5-BROMO-2-AMINOTHIAZOLE HAVING THE FOLLOWING GENERAL FORMULA: 2-(R2-N(-R3)-),4-R1,5-BR-THIAZOLE WHEREIN R1, R2 AND R3 REPRESENT A RADICAL SELECTED FROM THE CLASS CONSISTING OF HYDROGEN, ALKYL, ARYL, ARALKYL, CYCLOALKYL AND HETEROCYCLIC GROUPS, IN COMBINATION WITH (2) A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
104 words
A DRY HEAT SENSITIVE COPYING MATERIAL FOR THE PRODUCTION OF A COLOURED PRINT-OUT IMAGE ON EXPOSURE TO RADIANT HEAT COMPRISING A SHEET-LIKE MATERIAL CONTAINING THE COLOURLESS STARTING COMPOUNDS FOR A COLOURFORMING CHEMICAL REACTION BEING INITIATED BY THE IMAGEWISE APPLICATION OF HEAT, THE SAID STARTING COMPOUNDS HAVING A BOILING POINT OF ABOVE 100*C., THE SAID STARTING COMPOUNDS BEING SELECTED FROM THE GROUPS CONSISTING OF (A) (1) A 5-BROMO-2-AMINOTHIAZOLE HAVING THE FOLLOWING GENERAL FORMULA: 2-(R2-N(-R3)-),4-R1,5-BR-THIAZOLE WHEREIN R1, R2 AND R3 REPRESENT A RADICAL SELECTED FROM THE CLASS CONSISTING OF HYDROGEN, ALKYL, ARYL, ARALKYL, CYCLOALKYL AND HETEROCYCLIC GROUPS, IN COMBINATION WITH (2) A COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |