Patent US3687810A successfully refreshed from Google Patents.
US3687810A
Expired / Lapsed
US
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Process for producing l-lysine by fermentation
Assignee: KH Neochem Co Ltd
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Filing: 1970-06-08
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Granted: 1972-08-29
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Expires: 1990-06-08
Abstract
Abstract THE PRESENT INVENTION RELATES TO A PROCESS FOR PRODUCING L-LYSINE BY FERMENTATION USING AN L-LYSINE-PRODUCING STRAIN OF CORYNEBACTERIUM GLUTAMICUM AND BREVIBACTERIUM FLAVUM CAPABLE OF RESISTING ANTIBIOTICS SUCH AS PENICILLIN, BACITRACIN, CYCLOSERINE, GRAMICIDIN, POLYMIXIN AND NYSTATIN.
Inventors
- 👤 Sumio Kurihara
- 👤 Kazumi Araki
- 👤 Katsumi Akeyama
- 👤 Yoshimasa Takasawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:48
CPC Classifications
C; C12; C12P; C12P13/00; C12P13/04; C12P13/08; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/84; Y10S435/843
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |