US2789117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belta1, 4-3, 20-11-oxygenated-17, 21-dihydroxypregnadiene 21-phosphates and 9-fluoro derivatives thereof
Assignee: Merck and Co Inc
•
Filing: 1955-01-14
•
Granted: 1957-04-16
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Expires: 1975-01-14
Abstract
No abstract record available.
Inventors
- 👤 Lewis H Sarett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:46
CPC Classifications
C; C07; C07J; C07J5/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTS OF COMPOUNDS HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTS OF COMPOUNDS HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2183589A
Cited
US2579479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |