US3732144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing l-threonine and l-lysine
Assignee: KH Neochem Co Ltd
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Filing: 1971-01-18
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Granted: 1973-05-08
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Expires: 1991-01-18
Abstract
Abstract A PROCESS FOR PRODUCING L-THREONINE AND L-LYSINE SIMULTANEOUSLY BE FERMENTATION WHICH COMPRISES CULTURING AN L-THREONINE PLUS L-LYSINE-PRODUCING CERTAIN TYPE MUTANT STRAINS OF CORYNEFORM GLUTAMIC ACID-PRODUCING BACTERIA REPRESENTED BY CORYNEBACTERIUM GLUTAMICUM UNDER AEROBIC CONDITIONS IN AN AQUEOUS NUTRIENT MEDIUM.
Inventors
- 👤 K Nakayama
- 👤 H Kase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:57
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)
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |