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Patent US2649402A successfully refreshed from Google Patents.
US2649402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steroids
Assignee: Pharmacia and Upjohn Co
•
Filing: 1952-08-23
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Granted: 1953-08-18
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Expires: 1972-08-23
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Murray
- 👤 Durey H Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:45
CPC Classifications
C; C12; C12P; C12P33/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/913; Y10S435/915; Y10S435/917; Y10S435/92
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
43 words
A PROCESS FOR THE PRODUCTION OF AN OXYGENATED STEROID COMPRISING THE STEPS OF AEROBICALLY GROWING A CULTURE OF AN OXYGENATING STRAIN OF AN ORGANISM OF THE ASPERGILLUS GENUS, AND EXPOSING A STEROID TO THE OXYGENATING ACTIVITY OF ENZYMES PRODUCED BY THE SAID CULTURE.
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) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |