US3128237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing l-glutamic acid by bacterial fermentation
Assignee: Ajinomoto Co Inc
•
Filing: 1961-02-24
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Granted: 1964-04-07
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Expires: 1981-02-24
Abstract
No abstract record available.
Inventors
- 👤 Motozaki Shinichi
- 👤 Tsunoda Toshinao
- 👤 Okumura Shinji
- 👤 Okada Hiroshi
- 👤 Ozaki Asaichiro
- 👤 Ishikura Tomoyuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:33
CPC Classifications
C; C12; C12P; C12P13/00; C12P13/04; C12P13/14; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/84
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS FOR PRODUCING L-GLUTAMIC ACID BY BACTERIAL FERMENTATION WHICH COMPRISES CULTIVATING A STRAIN OF BREVIBACTERIUM LACTOFERMENTUM NOV. SP. HAVING THE CHARACTERISTIC SET FORTH IN TABLE 1 IN A FERMENTATIVE CULTURE LIQUOR CONTAINING AT LEAST 20 $/1. OF AN ADDITION AGENT SELECTED FROM THE GROUP CONSISTING OF VITAMIN B1 (THIAMINE), THIAMINE PROPYL DISULFITE, AND DIBENZOYL THIAMINE, TOGETHER WITH A SOURCE OF CARBON AND A NITROGEN SOURCE COMPOUND UNDER AEROBIC CONDITIONS AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 28*C. TO ABOUT 37*C. AND SEPARATING THUS FORMED GLUTAMIC ACID FROM THE FERMENTATION BROTH.
Claim 2
Dependent Claim
92 words
A PROCESS FOR PRODUCING L-GLUTAMIC ACID BY BACTERIAL FERMENTATION WHICH COMPRISES CULTIVATING A STRAIN OF BREVIBACTERIUM LACTOFERMENTUM NOV. SP. HAVING THE CHARACTERISTIC SET FORTH IN TABLE 1 IN A FERMENTATIVE CULTURE LIQUOR CONTAINING AT LEAST 20 $/1. OF AN ADDITION AGENT SELECTED FROM THE GROUP CONSISTING OF VITAMIN B1 (THIAMINE), THIAMINE PROPYL DISULFITE, AND DIBENZOYL THIAMINE, TOGETHER WITH A SOURCE OF CARBON AND A NITROGEN SOURCE COMPOUND UNDER AEROBIC CONDITIONS AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 28*C. TO ABOUT 37*C. AND SEPARATING THUS FORMED GLUTAMIC ACID FROM THE FERMENTATION BROTH.
References Cited (Backward Citations)
US3002925A
Cited
US3002887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |