Patent US3794478A successfully refreshed from Google Patents.
US3047469A
Expired / Lapsed
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Dehydrogenation of steroids by dehydrogenase and hydrogen carrier
Assignee: Olin Corp
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Filing: 1959-07-08
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Granted: 1962-07-31
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Expires: 1979-07-08
Abstract
No abstract record available.
Inventors
- 👤 Sih Charles John
- 👤 Ralph E Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:44
CPC Classifications
C; C12; C12P; C12P33/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/843; Y10S435/863; Y10S435/866; Y10S435/872
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A PROCESS FOR DEHYDROGENATING STEROIDS IN THE ARING WHICH COMPRISES SUBJECTING A 1, 2-SATURATED STEROID TO THE ACTION OF A MIXTURE OF (1) A HYDROEGEN CARRIER AND (2) A RING A DEHYDROGENASE WHICH IS A CELL-FREE EXTRACT OF A 1,2-DEHYDROGENATING STRAIN OF A MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF NOCARDIA, CORYNEBACTERIUM, MYCOBACTERIUM AND CYLINDROCARPON; AND RECOVERING THE RING A-DEHYDROGENATED-STERIOD THUS FORMED.
Claim 2
Dependent Claim
62 words
A PROCESS FOR DEHYDROGENATING STEROIDS IN THE ARING WHICH COMPRISES SUBJECTING A 1, 2-SATURATED STEROID TO THE ACTION OF A MIXTURE OF (1) A HYDROEGEN CARRIER AND (2) A RING A DEHYDROGENASE WHICH IS A CELL-FREE EXTRACT OF A 1,2-DEHYDROGENATING STRAIN OF A MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF NOCARDIA, CORYNEBACTERIUM, MYCOBACTERIUM AND CYLINDROCARPON; AND RECOVERING THE RING A-DEHYDROGENATED-STERIOD THUS FORMED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |