US2666016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biochemical processes for the oxygenation of steroids
Assignee: GD Searle LLC
•
Filing: 1951-01-25
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Granted: 1954-01-12
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Expires: 1971-01-25
Abstract
No abstract record available.
Inventors
- 👤 Hechter Oscar
- 👤 Robert P Jacobsen
- 👤 Jeanloz Roger
- 👤 Levy Harold
- 👤 Pincus Gregory
- 👤 Schenker Victor
- 👤 Charles W Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:10
CPC Classifications
C; C07; C07J; C07J5/00; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
THE METHOD OF HYDROXYLATING A STEROID WHICH COMPRISES ADDING A MEMBER OF THE GROUP OF STEROIDS HAVING ONE OF THE FOLLOWING FORMULAS:
Claim 2
Independent Claim
22 words
THE METHOD OF HYDROXYLATING A STEROID WHICH COMPRISES ADDING A MEMBER OF THE GROUP OF STEROIDS HAVING ONE OF THE FOLLOWING FORMULAS:
References Cited (Backward Citations)
US1515976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |