US2707190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of 9-halo-11beta-hydroxy steroids
Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-10-21
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Granted: 1955-04-26
•
Expires: 1973-10-21
Abstract
No abstract record available.
Inventors
- 👤 Martin W Farrar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:18
CPC Classifications
C; C07; C07J; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
THE PROCESS OF OXIDIZING AND 11B-HYDROXY GROUP OF A 9-HALO-11B-HYDROXY STEROIDAL COMPOUND WHEREIN RING D IS SELECTED FROM THE GROUP CONSISTING OF 5-MEMBERED AND 6-MEMBERED SATURATED CARBOCYLIC RINGS FUSED TO A NUCLEUS OF THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
36 words
THE PROCESS OF OXIDIZING AND 11B-HYDROXY GROUP OF A 9-HALO-11B-HYDROXY STEROIDAL COMPOUND WHEREIN RING D IS SELECTED FROM THE GROUP CONSISTING OF 5-MEMBERED AND 6-MEMBERED SATURATED CARBOCYLIC RINGS FUSED TO A NUCLEUS OF THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US2403683A
Cited
GB653480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-25 | 1958-10-25 | 1959-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-25 | 1962-10-25 | 1963-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-25 | 1966-10-25 | 1967-04-26 | $7700.00 | Window Closed / Lapsed |