US3216906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing glutamine by fermentation process
Assignee: KH Neochem Co Ltd
•
Filing: 1962-08-03
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Granted: 1965-11-09
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Expires: 1982-08-03
Abstract
No abstract record available.
Inventors
- 👤 Kinoshita Shukuo
- 👤 Tanaka Katsunobu
- 👤 Oshima Kazuo
- 👤 Kimura Kazuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:56
CPC Classifications
C; C12; C12P; C12P13/00; C12P13/04; C12P13/14; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/859; Y10S435/861
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A METHOD FOR PRODUCING L-GLUTAMINE BY FERMENTATION WHICH COMPRISES AEROBICALLY CULTURING A STRAIN OF MICROCOCCUS GLUTAMICUS IN A NUTRIENT MEDIUM CONTAINING AVAILABLE CARBON AND A HIGHER AMMONIUM ION CONCENTRATION THAN THAT REQUIRED FOR THE GROWTH OF THE MICROORGANISM AND FOR THE PRODUCTION OF GLUTAMIC ACID AND AT A CONCENTRATION SUFFICIENT TO PROVIDE AVAILABLE NITROGEN IN AN AMOUNT WHICH IS AT LEAST 5 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF AVAILABLE CARBON IN THE MEDIUM, AND CONTROLLING THE PH OF THEMEDIM WITHIN THE RANGE OF FROM ABOUT 5.5 TO ABOUT 8.5 AND THE TEMPERATURE OF THE MEDIUM WITHIN THE RANGE OF FROM ABOUT 24* TO ABOUT 37*C., AND RECOVERING THE L-GLUTAMINE FROM THE FERMENTATION MEDIUM.
Claim 2
Independent Claim
116 words
A METHOD FOR PRODUCING L-GLUTAMINE BY FERMENTATION WHICH COMPRISES AEROBICALLY CULTURING A STRAIN OF MICROCOCCUS GLUTAMICUS IN A NUTRIENT MEDIUM CONTAINING AVAILABLE CARBON AND A HIGHER AMMONIUM ION CONCENTRATION THAN THAT REQUIRED FOR THE GROWTH OF THE MICROORGANISM AND FOR THE PRODUCTION OF GLUTAMIC ACID AND AT A CONCENTRATION SUFFICIENT TO PROVIDE AVAILABLE NITROGEN IN AN AMOUNT WHICH IS AT LEAST 5 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF AVAILABLE CARBON IN THE MEDIUM, AND CONTROLLING THE PH OF THEMEDIM WITHIN THE RANGE OF FROM ABOUT 5.5 TO ABOUT 8.5 AND THE TEMPERATURE OF THE MEDIUM WITHIN THE RANGE OF FROM ABOUT 24* TO ABOUT 37*C., AND RECOVERING THE L-GLUTAMINE FROM THE FERMENTATION MEDIUM.
References Cited (Backward Citations)
US2921002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |