Patent US3086919A successfully refreshed from Google Patents.
US3086919A
Expired / Lapsed
US
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Dehydrogenation of steroids by microorganisms of the genus flavobacterium
Assignee: Takeda Pharmaceutical Co Ltd
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Filing: 1961-11-21
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Granted: 1963-04-23
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Expires: 1981-11-21
Abstract
No abstract record available.
Inventors
- 👤 Isono Masao
- 👤 Abe Matazo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:40
CPC Classifications
C; C12; C12P; C12P33/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/85
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCESS CONVERTING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF STEROIDS OF THE PREGNANE AND ANDROSTANE SERIES, IN WHICH AT LEAST THE POSITIONS 1 AND 2 ARE SATURATED, INTO THE CORRESPONDING $1-DEHYDROSTEROID, WHICH COMPRISES BRINGING SAID COMPOUND INTO CONTACT WITH AN ENZYME SYSTEM OF AN OXIDASE-PRODUCING MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF FLAVOBACTERIUM SP. (IFO-3344; ATCC-13552), FLAVOBACTERIUM AQUATILE (FLANKLAND AND FLANKLAND), AND FLAVOBACTERIUM LUTESCENECE (MIGULA) WHEREBY A DOUBLE BOND IS INTRODUCED BETWEEN THE POSITIONS 1 AND 2 TO YEILD THE SAID $1-COMPOUND.
Claim 2
Dependent Claim
84 words
A PROCESS CONVERTING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF STEROIDS OF THE PREGNANE AND ANDROSTANE SERIES, IN WHICH AT LEAST THE POSITIONS 1 AND 2 ARE SATURATED, INTO THE CORRESPONDING $1-DEHYDROSTEROID, WHICH COMPRISES BRINGING SAID COMPOUND INTO CONTACT WITH AN ENZYME SYSTEM OF AN OXIDASE-PRODUCING MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF FLAVOBACTERIUM SP. (IFO-3344; ATCC-13552), FLAVOBACTERIUM AQUATILE (FLANKLAND AND FLANKLAND), AND FLAVOBACTERIUM LUTESCENECE (MIGULA) WHEREBY A DOUBLE BOND IS INTRODUCED BETWEEN THE POSITIONS 1 AND 2 TO YEILD THE SAID $1-COMPOUND.
References Cited (Backward Citations)
US3013011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |