US3825472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing l-lysine by fermentation
Assignee: Ajinomoto Co Inc
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Filing: 1973-10-02
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Granted: 1974-07-23
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Expires: 1993-10-02
Abstract
Abstract ARTIFICIALLY INDUCED MUTANTS OF BREVIBACTERIUM LACTOFERMENTUM, CORYNEBACTERIUM GLUTAMICUM, CORYNEBACTERIUM LILIUM, AND CORYNEBACTERIUM ACETOACIDOPHILUM WHICH RESIST FEEDBACK INHIBITION BY S-(2-AMINOETHYL)-CYSTEINE AND REQUIRE AT LEAST ONE SUPPLEMENTAL NUTRIENT WHICH IS HERINE, PROLINE, ANANINE, NICOTINAMIDE, NICOTINIC ACID, PANTOTHENIC ACID, THIAMINE, GUANIDINE, ADENINE, HYPOXANTHINE, OR VITAMIN B12 PRODUCE L-LYSINE BY FERMENTATION OF OTHERWISE CONVENTIONAL CULTURE MEDIA IN HIGHER YIELDS THAN THE PARENT STRAINS LACKING THE NUTRIENT REQUIREMENT.
Inventors
- 👤 S Okumura
- 👤 H Okada
- 👤 S Nosaki
- 👤 F Yoshinaga
- 👤 H Hirakawa
- 👤 H Kamijo
- 👤 K Kubota
- 👤 Y Yoshihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:46
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
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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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |