US2837464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of dienes by corynebacteria
Assignee: Merck Sharp & Dohme LLC
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Filing: 1955-01-11
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Granted: 1958-06-03
•
Expires: 1975-01-11
Abstract
No abstract record available.
Inventors
- 👤 Nobile Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:53
CPC Classifications
C; C12; C12P; C12P33/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/843
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
PROCESS FOR THE MANUFACTURE OF $1,4-PREGNADIENES WHICH COMPRISES SUBJECTING A $4-3-KETO PREGNENE TO THE ACTION OF A CULTURE OF A MEMBER OF THE GROUP CONSISTING OF CROYNEBACTERIUM SIMPLEX AND CORYNEBACTERIUM HOAGII.
Claim 2
Dependent Claim
31 words
PROCESS FOR THE MANUFACTURE OF $1,4-PREGNADIENES WHICH COMPRISES SUBJECTING A $4-3-KETO PREGNENE TO THE ACTION OF A CULTURE OF A MEMBER OF THE GROUP CONSISTING OF CROYNEBACTERIUM SIMPLEX AND CORYNEBACTERIUM HOAGII.
References Cited (Backward Citations)
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US2186906A
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US2341110A
Cited
US2705237A
Cited
US2602769A
Cited
US2649402A
Cited
US2658023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |