US3759789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the microbial production of lysine and isoleucine
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1971-03-17
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Granted: 1973-09-18
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Expires: 1991-03-17
Abstract
Abstract A PROCESS FOR PRODUCING L-LYSINE AND L-ISOLEUCINE WHICH COMPRISES CULTIVATING A THERONINE RESISTANT MUTANT STRAIN OF ARTHROBACTER ALKANICUS (ARTHOBACTER ALKANICUS NO. 109) (ATCC NO.21657), UNDER AEROBIC CONDITIONS IN AN AQUEOUS NUTRIENT MEDIUM CONTAINING ASSIMILABLE CARBON SOURCES SUCH AS HYDROCARBONS, FATTY ACIDS, ORGANIC ACIDS OR ALCOHOLS, AND SURFACE ACTIVE AGENTS SUCH AS POLYOXYETHYLENE-SORBITAN MONO-OLEATE OR POLYOXYETHYLENESORBITANE TRI-OLEATE, AND ACCUMULATING L-LYSINE AND L-ISOLEUCINE IN THE RESULTANT CULTURE LIQUOR.
Inventors
- 👤 K Watanabe
- 👤 T Tanaka
- 👤 T Hirakawa
- 👤 M Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:09
CPC Classifications
C; C12; C12P; C12P13/00; C12P13/04; C12P13/06; C12P13/08; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/83
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |