US2674606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-halo-11beta, 17alpha-dihydroxypregnane-3-20-diones
Assignee: Pharmacia and Upjohn Co
•
Filing: 1952-10-27
•
Granted: 1954-04-06
•
Expires: 1972-10-27
Abstract
No abstract record available.
Inventors
- 👤 Robert H Levin
- 👤 Barney J Magerlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:21
CPC Classifications
C; C07; C07J; C07J5/00; C07J3/00; C07J7/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A 4 - HALO - 11B,17A - DIHYDROXYPREGNANE3,20-DIONE WHEREIN THE HALOGEN ATOM IN POSITION 4 HAS AN ATOMIC WEIGHT BETWEEN 35 AND 80.
Claim 2
Dependent Claim
23 words
A 4 - HALO - 11B,17A - DIHYDROXYPREGNANE3,20-DIONE WHEREIN THE HALOGEN ATOM IN POSITION 4 HAS AN ATOMIC WEIGHT BETWEEN 35 AND 80.
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) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |