US3211755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-amino-2-benzoyl-4-hydroxy anthraquinone
Assignee: Novartis Corp
•
Filing: 1963-09-27
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Granted: 1965-10-12
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Expires: 1983-09-27
Abstract
No abstract record available.
Inventors
- 👤 Fitzpatrick Joseph William
- 👤 Wehner Philip
- 👤 Hildreth John David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:22
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/50; C09B1/503
Claims Analysis
Total Claims: 0
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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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |