US3262861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing l-isoleucine by fermentation process
Assignee: KH Neochem Co Ltd
•
Filing: 1965-05-05
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Granted: 1966-07-26
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Expires: 1985-05-05
Abstract
No abstract record available.
Inventors
- 👤 Kinoshita Shukuo
- 👤 Samejima Hirotoshi
- 👤 Mizuhara Kunizo
- 👤 Nara Takashi
- 👤 Misawa Masanaru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:24
CPC Classifications
C; C12; C12P; C12P13/00; C12P13/04; C12P13/06; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/84; Y10S435/848; Y10S435/849; Y10S435/859; Y10S435/861; Y10S435/874; Y10S435/886
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A METHOD OF PRODUCING L-ISOLEUCINE BY FERMENTATION WHICH COMPRISES CULTIVATING AN L-ISOLEUCINE PRODUCING STRAIN OF MICROCOCCUS GLUTAMICUS IN A CULTURE MEDIUM CONTAINING A-AMINOBUTYRIC ACID, WHEREBY L-ISOLEUCINE IS ACCUMULATED IN THE MEDIUM IN SIGNIFICANT QUANTITY, AND RECOVERING THE L-ISOLEUCINE FROM SAID MEDIUM.
Claim 2
Independent Claim
41 words
A METHOD OF PRODUCING L-ISOLEUCINE BY FERMENTATION WHICH COMPRISES CULTIVATING AN L-ISOLEUCINE PRODUCING STRAIN OF MICROCOCCUS GLUTAMICUS IN A CULTURE MEDIUM CONTAINING A-AMINOBUTYRIC ACID, WHEREBY L-ISOLEUCINE IS ACCUMULATED IN THE MEDIUM IN SIGNIFICANT QUANTITY, AND RECOVERING THE L-ISOLEUCINE FROM SAID MEDIUM.
References Cited (Backward Citations)
US3058888A
Cited
US3041247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |