US2695260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the oxygenation of steroids with the oxygenating activity of neurospora
Assignee: Pharmacia and Upjohn Co
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Filing: 1952-08-28
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Granted: 1954-11-23
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Expires: 1972-08-28
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Murray
- 👤 Durey H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:50
CPC Classifications
C; C12; C12P; C12P33/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A PROCESS FOR THE INTRODUCTION OF OXYGEN INTO A STEROID WHICH COMPRISES: GROWING A NEUROSPORA UNDER AEROBIC CONDITIONS IN THE PRESENCE OF A FERMENTATION MEDIUM CONTAINING ASSIMILABLE NON-STEROIDAL CARBON AND A STEROID HAVING AN ELEVEN METHYLENE GROUP AND RECOVERING THE RESULTING OXYGENATED STEROID.
Claim 2
Dependent Claim
43 words
A PROCESS FOR THE INTRODUCTION OF OXYGEN INTO A STEROID WHICH COMPRISES: GROWING A NEUROSPORA UNDER AEROBIC CONDITIONS IN THE PRESENCE OF A FERMENTATION MEDIUM CONTAINING ASSIMILABLE NON-STEROIDAL CARBON AND A STEROID HAVING AN ELEVEN METHYLENE GROUP AND RECOVERING THE RESULTING OXYGENATED STEROID.
References Cited (Backward Citations)
US2602769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |