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US2870177A
Expired / Lapsed
US
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delta4-11-oxygenated-pregnene-17alpha, 21-diol-3, 20-dione 21-phosphate and salts thereof
Assignee: Merck and Co Inc
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Filing: 1954-08-04
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Granted: 1959-01-20
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Expires: 1974-08-04
Abstract
No abstract record available.
Inventors
- 👤 John P Conbere
- 👤 Iii Karl Pister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:57
CPC Classifications
C; C07; C07J; C07J21/00; C07J5/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US2183589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |