US3125495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microbial preparation of
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
•
Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:26
CPC Classifications
C; C12; C12P; C12P33/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS FOR CONVERTING A STEROID OF THE ESTRANE SERIES CONTAINING AN AROMATIC A-RING AND UNSUBSTITUTED IN THE 7 AND 15 POSITIONS TO ITS 7 AND 15 HYDROXY DERIVATIVES, WHICH COMPRISES SUBJECTING SUCH STEROID TO THE ACTION OF ENZYMES OF A MICROORGANISM OF THE SPECIES ASPERGILLUS CARNEUS.
Claim 2
Dependent Claim
47 words
A PROCESS FOR CONVERTING A STEROID OF THE ESTRANE SERIES CONTAINING AN AROMATIC A-RING AND UNSUBSTITUTED IN THE 7 AND 15 POSITIONS TO ITS 7 AND 15 HYDROXY DERIVATIVES, WHICH COMPRISES SUBJECTING SUCH STEROID TO THE ACTION OF ENZYMES OF A MICROORGANISM OF THE SPECIES ASPERGILLUS CARNEUS.
References Cited (Backward Citations)
US2649402A
Cited
US2905593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |