US3700557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing l-lysine by fermentation
Assignee: KH Neochem Co Ltd
•
Filing: 1968-08-06
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Granted: 1972-10-24
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Expires: 1988-08-06
Abstract
Abstract A PROCESS FOR PRODUCING L-LYSINE BY FERMENTATION. A MICROORGANISM WHICH REQUIRED THREONINE, METHIONINE, ARGININE, HISTIDINE, LEUCINE, ISOLECUCINE, PHENYLALANINE, CYSTINE OR CYSTEINE AND IS CAPABLE OF PRODUCING L-LYSINE IS CULTURED IN AN AQUEOUS NUTRIENT MEDIUM CONTAINING A SOURCE OF CARBON AND NITROGEN UNDER AEROBIC CONDITIONS. MICROORGANISMS BELONGING TO THE GENERA BREVIBACTERIUM, CORYNEBACTERIUM, ARTHROBACTER AND MICROBACTERIUM ARE EXAMPLIFIED.
Inventors
- 👤 Kiyoshi Nakayama
- 👤 Haruo Tanaka
- 👤 Hiroshi Hagino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:39
CPC Classifications
C; C12; C12P; C12P13/00; C12P13/04; C12P13/08; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/83; Y10S435/84; Y10S435/843
Claims Analysis
Total Claims: 0
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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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |