Patent US3829286A successfully refreshed from Google Patents.
US3829286A
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Sublimation transfer dyeing with 4,8-di-hydroxy-1-arylamino-anthraquinones
Assignee: Toppan Inc
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Filing: 1973-02-16
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Granted: 1974-08-13
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Expires: 1993-02-16
Abstract
Abstract A SUBLIMATION TRANSFER DYEING METHOD WHICH IS CHARACTERIZED BY THE USE OF NOVEL AND IMPROVED COMPOUNDS OF THE GENERAL FORMULA: 1-((X,Y-PHENYL)-NH-),4-(HO-),(HO-)-ANTHRAQUINONE IN WHICH X REPRESENTS A METHYL GROUP OR ETHYL GROUP AT ORTHO OR META POSITION WITH REGARD TO THE IMINO GROUP, AND Y REPRESENTS A HYDROGEN ATOM, METHYL GROUP, METHOXY GROUP, FLUORINE ATOM OR CHLORINE ATOM.
Inventors
- 👤 M Anzai
- 👤 M Miyatake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:20
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/385; B41M5/3852; C; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/50; C09B1/51; C09B1/514; D; D06; D06P; D06P5/00; D06P5/003; D06P5/004; D06P5/006; Y; Y10; Y10S; Y10S8/00; Y10S8/908; Y10S8/912
Claims Analysis
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References Cited (Backward Citations)
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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) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |