US2779775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphate derivatives of 9alpha-fluorosteroids
Assignee: Merck and Co Inc
•
Filing: 1954-09-30
•
Granted: 1957-01-29
•
Expires: 1974-09-30
Abstract
No abstract record available.
Inventors
- 👤 Lewis H Sarett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:29
CPC Classifications
C; C07; C07J; C07J5/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 9A - FLUORO - 4 - PREGNENE - 11B,17A,21 - TRIOL - 3,20DIONE - 21 - PHOSPHATE, 9A - FLUORO - 4 - PREGNENE - 17A, 21 - DIOL - 3,11,20 - TRIONE - 21 PHOSPHATE, AND ALKALI AND ALKALINE EARTH METAL SALTS THEREOF.
Claim 2
Dependent Claim
52 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 9A - FLUORO - 4 - PREGNENE - 11B,17A,21 - TRIOL - 3,20DIONE - 21 - PHOSPHATE, 9A - FLUORO - 4 - PREGNENE - 17A, 21 - DIOL - 3,11,20 - TRIONE - 21 PHOSPHATE, AND ALKALI AND ALKALINE EARTH METAL SALTS THEREOF.
References Cited (Backward Citations)
US2707190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |