US2584159A
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Process for producing 2-halo-allo-pregnane-17alpha-ol-3,20-dione
Assignee: Syntex SA
•
Filing: 1949-09-19
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Granted: 1952-02-05
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Expires: 1969-09-19
Abstract
No abstract record available.
Inventors
- 👤 Rosenkranz George
- 👤 Kaufmann Stephen
- 👤 Pataki John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:49
CPC Classifications
C; C07; C07J; C07J5/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A PROCESS FOR THE PRODUCTION OF 2-HALO-ALLOPREGNANE-17A-OL-3,20-DIONE HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
11 words
A PROCESS FOR THE PRODUCTION OF 2-HALO-ALLOPREGNANE-17A-OL-3,20-DIONE HAVING THE FOLLOWING 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) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |