US3708395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing l-lysine
Assignee: KH Neochem Co Ltd
•
Filing: 1970-07-13
•
Granted: 1973-01-02
•
Expires: 1990-07-13
Abstract
Abstract A PROCESS FOR PRODUCING L-LYSINE BY FERMENTATION WHICH COMPRISES CULTURING A MICROORGANISM BELONGING TO THE GENUS BREVIBACTERIUM FLAVUM OR CORYNEBACTERIUM, GLUTAMICUM, THE MICROORGANISM HAVING A NUTRITIONAL REQUIREMENT FOR HOMOSERINE, THREONINE, THREONINE PLUS METHIOMINE, LEUCINE, ISOLEUCINE OR MIXTURES THEREOF AND A REISTANCE TO A FEEDBACK INHIBITION AND/OR REPRESSION OF LYSINE, THERONINE, ISOLEUCINE OR ANALOGUES THEREOF, UNDER AEROBIC CONDITIONS IN AN AQUEOUS NUTRIENT MEDIUM. AN INCREASE IN YIELD OVER CONVENTIONAL PROCESSES IS OBTAINED THEREBY.
Inventors
- 👤 K Nakayama
- 👤 K Araki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:32
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
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |