US2904472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for degradation of side chain of androstane and pregnane compounds
Assignee: CIBA PHARM PROD Inc
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Filing: 1954-08-10
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Granted: 1959-09-15
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Expires: 1974-08-10
Abstract
No abstract record available.
Inventors
- 👤 Wettstein Albert
- 👤 Vischer Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:52
CPC Classifications
C; C12; C12P; C12P33/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/897
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PROCESS FOR THE MANUFACTURE OF STEROIDAL OXIDATION PRODUCTS OF STEROIDS WHICH COMPRISES SUBJECTING A MEMBER SELECTED FROM THE GROUP CONSISTING OF ANDROSTANE AND PREGNANE COMPOUNDS WHICH CONTAIN IN THE 3-,17-AND 3-, 20-POSITIONS RESPECTIVELY A MEMBER SELECTED FROM THE GROUP CONSISTING OF FREE AND PROTECTED HYDROXYL AND OXO GROUPS, TO THE ACTION OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF FUNGI OF THE SPECIES FUSARIUM SOLANI, FUSARIUM CAUCASICUM AND RHIZOPUS SUINUS AND THE ENZYMES THEREOF, AND ISOLATING A MEMBER SELECTED FROM THE GROUP CONSISTING OF TESTO-LACTONES AND ANDROSTANE COMPOUNDS FORMED WHICH CONTAIN IN THE 3- AND 17-POSITION A MEMBER SELECTED FROM THE GROUP CONSISTING OF FREE AND PROTECTED HYDROXYL AND OXO GROUPS.
Claim 2
Dependent Claim
113 words
A PROCESS FOR THE MANUFACTURE OF STEROIDAL OXIDATION PRODUCTS OF STEROIDS WHICH COMPRISES SUBJECTING A MEMBER SELECTED FROM THE GROUP CONSISTING OF ANDROSTANE AND PREGNANE COMPOUNDS WHICH CONTAIN IN THE 3-,17-AND 3-, 20-POSITIONS RESPECTIVELY A MEMBER SELECTED FROM THE GROUP CONSISTING OF FREE AND PROTECTED HYDROXYL AND OXO GROUPS, TO THE ACTION OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF FUNGI OF THE SPECIES FUSARIUM SOLANI, FUSARIUM CAUCASICUM AND RHIZOPUS SUINUS AND THE ENZYMES THEREOF, AND ISOLATING A MEMBER SELECTED FROM THE GROUP CONSISTING OF TESTO-LACTONES AND ANDROSTANE COMPOUNDS FORMED WHICH CONTAIN IN THE 3- AND 17-POSITION A MEMBER SELECTED FROM THE GROUP CONSISTING OF FREE AND PROTECTED HYDROXYL AND OXO GROUPS.
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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |