US3816391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-amino-4-aryl-5-(2-cyano-4,6-dinitro-phenylazo)thiazole compounds
Assignee: Novartis Corp
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Filing: 1971-12-01
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Granted: 1974-06-11
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Expires: 1991-12-01
Abstract
Abstract MONOAZO COMPOUNDS HAVING A 2-CYANO-4,6-DINITROPHENYL DIAZO COMPONENT AND A 2-AMINO-4-ARYL-5-THIAZOLYL COUPLING COMPONENT PRODUCE BLUE TO GREEN SHADES ON POLYESTER TEXTILE MATERIALS AND EXHIBIT GOOD FASTNESS AND DYEABILITY PROPERTIES.
Inventors
- 👤 C Coates
- 👤 M Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:31
CPC Classifications
C; C09; C09B; C09B29/00; C09B29/34; C09B29/36; C09B29/3691
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |