Patent US3763196A successfully refreshed from Google Patents.
US3763196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
17-esters of 6alpha-9alpha-difluoro-21-desoxyprednisolone
Assignee: Warner Lambert Co LLC
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Filing: 1972-11-14
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Granted: 1973-10-02
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Expires: 1992-11-14
Abstract
Abstract THE 17-PROPIONATE, 17-BUTYRATE AND 17-BENZOATE OF 6A,9A-DIFLUORO-21-DESOXYPREDNISOLONE WHICH CAN BE PREPARED FROM THE CORRESPONDING 17-ESTERS OF 6A,9A-DIFLUOROPREDNISOLONE BY REDUCTIVE ELIMINATION OF THE HYDROXY GROUP AT C21, ARE USEFUL AS TOPICAL ANTI-INFLAMMATORY AGENTS.
Inventors
- 👤 R Gardi
- 👤 C Brianza
- 👤 R Vitali
- 👤 G Falconi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:52
CPC Classifications
C; C07; C07J; C07J7/00; C07J7/0005; C07J7/001; C07J7/004; C07J7/0045; C07J75/00
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) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |