Patent US3254002A successfully refreshed from Google Patents.
US3254002A
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Method for producing glutamic acid
Assignee: International Minerals and Chemical Corp
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Filing: 1963-01-07
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Granted: 1966-05-31
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Expires: 1983-01-07
Abstract
No abstract record available.
Inventors
- 👤 John C Megna
- 👤 Richard D Boucher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:31
CPC Classifications
C; C12; C12P; C12P13/00; C12P13/04; C12P13/14; Y; Y10; Y10S; Y10S435/00; Y10S435/813; Y10S435/8215; Y10S435/822; Y10S435/843
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN THE METHOD OF PRODUCING GLUTAMIC ACID BY AEROBIC FERMENTATION EMPLOYING A MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF CORYNEBACTERIUM LILIUM AND CARYNEBACTERIUM CALLUNAE IN AN AQUEOUS CAROHYDRATE MEDIUM CONTAINING A NITROGEN SOURCE, THE IMPROVEMENT OF ESTABLISHING AN INITIAL FERMENTATION MEDIUM CONTAINING A CARBOHYDRATE IN AN AMOUNT LESS THAN ABOUT 3 WEIGHT PERCENT AND CONTAINING BIOTIN IN AN AMOUNT LESS THAN ABOUT 10 GAMMA PER LITER AND AFTER AN INITIAL GROWTH PERIOD OF FROM ABOUT 1 TO ABOUT 8 HOURS INCREMENTALLY ADDING A CARBOHYDRATE CONTAINING FROM ABOUT 0.02 TO ABOUT 0.3 GAMMA OF BIOTIN PER GRAM TO MAINTAIN THE CARBOHYDRATE LEVEL IN THE MEDIUM AT NOT MORE THAN ABOUT 1 WEIGHT PERCENT.
Claim 2
Dependent Claim
112 words
IN THE METHOD OF PRODUCING GLUTAMIC ACID BY AEROBIC FERMENTATION EMPLOYING A MICROORGANISM SELECTED FROM THE GROUP CONSISTING OF CORYNEBACTERIUM LILIUM AND CARYNEBACTERIUM CALLUNAE IN AN AQUEOUS CAROHYDRATE MEDIUM CONTAINING A NITROGEN SOURCE, THE IMPROVEMENT OF ESTABLISHING AN INITIAL FERMENTATION MEDIUM CONTAINING A CARBOHYDRATE IN AN AMOUNT LESS THAN ABOUT 3 WEIGHT PERCENT AND CONTAINING BIOTIN IN AN AMOUNT LESS THAN ABOUT 10 GAMMA PER LITER AND AFTER AN INITIAL GROWTH PERIOD OF FROM ABOUT 1 TO ABOUT 8 HOURS INCREMENTALLY ADDING A CARBOHYDRATE CONTAINING FROM ABOUT 0.02 TO ABOUT 0.3 GAMMA OF BIOTIN PER GRAM TO MAINTAIN THE CARBOHYDRATE LEVEL IN THE MEDIUM AT NOT MORE THAN ABOUT 1 WEIGHT PERCENT.
References Cited (Backward Citations)
US3066078A
Cited
US3087863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |