Patent US3836046A successfully refreshed from Google Patents.
Patent US2861086A successfully refreshed from Google Patents.
US2861086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
17-oxygenated estra-1, 3, 5(10)-triene-1, 3-diols, and the corresponding esters and ethers
Assignee: GD Searle LLC
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Filing: 1957-12-27
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Granted: 1958-11-18
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Expires: 1977-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jiu James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:44
CPC Classifications
C; C07; C07J; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE 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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |