Patent DE488235C successfully refreshed from Google Patents.
US2925366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of 17-alpha steroids by genus trichothecium
Assignee: Pharmacia and Upjohn Co
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Filing: 1957-08-09
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Granted: 1960-02-16
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Expires: 1977-08-09
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Murray
- 👤 Peter D Meister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:52
CPC Classifications
C; C12; C12P; C12P33/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PROCESS FOR HYDROXYLATING A STEROID WHICH INCLUDES THE INTRODUCTING OF AN A-HYDROXY GROUP AT POSITION 17 OF A STEROID WHICH COMPRISES GROWING A SPECIES OF FUNGUS OF THE GENUS TRICHOTHECIUM UNDER AEROBIC CONDITIONS IN AN AQUEOUS MEDIUM, CONTAINING A STEROID HAVING A TERTIARY HYDROGEN ATTACHED TO THE CARBON ATOM AT POSITION 17.
Claim 2
Dependent Claim
53 words
A PROCESS FOR HYDROXYLATING A STEROID WHICH INCLUDES THE INTRODUCTING OF AN A-HYDROXY GROUP AT POSITION 17 OF A STEROID WHICH COMPRISES GROWING A SPECIES OF FUNGUS OF THE GENUS TRICHOTHECIUM UNDER AEROBIC CONDITIONS IN AN AQUEOUS MEDIUM, CONTAINING A STEROID HAVING A TERTIARY HYDROGEN ATTACHED TO THE CARBON ATOM AT POSITION 17.
References Cited (Backward Citations)
US2602769A
Cited
US2658023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |