US3194835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New colchicinic and thiocolchicinic derivatives and process of preparation
Assignee: Sanofi Aventis France
•
Filing: 1963-05-10
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Granted: 1965-07-13
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Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Muller Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:59
CPC Classifications
A; A01; A01N; A01N45/00; A01N45/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
12 words
A PROCESS FOR THE PRODUCTION OF A COLCHICINIC DERIVATIVE OF THE FORMULA:
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |