Patent US3102080A successfully refreshed from Google Patents.
US3102080A
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Method of producing 1,4-diene-3-ketosteroids
Assignee: Bayer Pharma AG
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Filing: 1961-05-02
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Granted: 1963-08-27
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Expires: 1981-05-02
Abstract
No abstract record available.
Inventors
- 👤 Raspe Gerhard
- 👤 Kiesslich Klaus
- 👤 Olivar Erich
- 👤 Muller Rudolf
- 👤 Wagner Brigitte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:40
CPC Classifications
C; C12; C12P; C12P33/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/832
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
THE METHOD OF PRODUCING 1,4-PREGNADIENE-11B,17A, 21-TRIOL-3,20-DIONE, WHICH COMPRISES TREATING 4-PREGNENE11N,17A-21-TRIOL-3,20-DIONE WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF A BACILLUS LENTUS MB 284 CULTURE AND THE ENZYMES ISOLATED THEREFROM.
Claim 2
Independent Claim
30 words
THE METHOD OF PRODUCING 1,4-PREGNADIENE-11B,17A, 21-TRIOL-3,20-DIONE, WHICH COMPRISES TREATING 4-PREGNENE11N,17A-21-TRIOL-3,20-DIONE WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF A BACILLUS LENTUS MB 284 CULTURE AND THE ENZYMES ISOLATED THEREFROM.
References Cited (Backward Citations)
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Cited
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US2844513A
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US2867636A
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US2887499A
Cited
US2958631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |