Patent US2713588A successfully refreshed from Google Patents.
US2713588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3 beta, 11alpha-dihydroxyallopregnane-20-one and esters thereof
Assignee: Pharmacia and Upjohn Co
•
Filing: 1952-04-01
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Granted: 1955-07-19
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Expires: 1972-04-01
Abstract
No abstract record available.
Inventors
- 👤 Alan H Nathan
- 👤 John A Hogg
- 👤 Douglas A Lyttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:27
CPC Classifications
C; C07; C07J; C07J5/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
3B,11A-DIHYDROXYALLOPREGNANE-20-ONE.
Claim 2
Dependent Claim
1 words
3B,11A-DIHYDROXYALLOPREGNANE-20-ONE.
References Cited (Backward Citations)
GB594878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |