US2886490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing cobalamines by fermenting culture media with nocardia rugosa
Assignee: Pfizer Italia SRL
•
Filing: 1956-04-25
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Granted: 1959-05-12
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Expires: 1976-04-25
Abstract
No abstract record available.
Inventors
- 👤 Marco Aurelio Di
- 👤 Spalla Celestino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:25
CPC Classifications
C; C07; C07H; C07H23/00; C12; C12P; C12P19/00; C12P19/26; C12P19/28; C12P19/42; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/872
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
THE PROCESS FOR THE PRODUCTION OF COBALAMINES WHICH COMPRISES FERMENTING AN AQUEOUS NUTRIENT MEDIUM INCLUDING A COBALT SOURCE UNDER SUBMERGBED AERATED CONDITIONS BY MEANS OF NOCARDIA RUGOSA, AND RECOVERING A COBALAMINE CONCENTRATE.
Claim 2
Dependent Claim
32 words
THE PROCESS FOR THE PRODUCTION OF COBALAMINES WHICH COMPRISES FERMENTING AN AQUEOUS NUTRIENT MEDIUM INCLUDING A COBALT SOURCE UNDER SUBMERGBED AERATED CONDITIONS BY MEANS OF NOCARDIA RUGOSA, AND RECOVERING A COBALAMINE CONCENTRATE.
References Cited (Backward Citations)
US2650896A
Cited
US2703302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |