US4430430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing L-arginine by fermentation
Assignee: Ajinomoto Co Inc
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Filing: 1981-06-10
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Granted: 1984-02-07
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Expires: 2001-06-10
Abstract
Abstract An L-arginine producing microorganism which is constructed by transforming into a recipient strain of the genus Escherichia of a vector having inserted therein an arg A gene derived from a chromosomal DNA of the genus Escherichia, is useful for the production of high levels of L-arginine by fermentation.
Inventors
- 👤 Haruo Momose
- 👤 Masaaki Ishida
- 👤 Mahito Terabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:44
CPC Classifications
C; C12; C12N; C12N15/00; C12N15/09; C12N15/11; C12N15/52; C12P; C12P13/00; C12P13/04; C12P13/10; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/848; Y10S435/849
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
31 words
A method for producing L-arginine by fermentation which comprises culturing in a culture medium an L-arginine producing microorganism selected from the group consisting of transformat NRRL B-12426 and transformat NRRL B-12427.
Claim 2
Independent Claim
31 words
A method for producing L-arginine by fermentation which comprises culturing in a culture medium an L-arginine producing microorganism selected from the group consisting of transformat NRRL B-12426 and transformat NRRL B-12427.
Claim 3
Dependent Claim
16 words
The method according to claim 1 wherein the L-arginine producing microorganism is the transformant NRRL B-12426.
Claim 4
Dependent Claim
16 words
The method according to claim 1, wherein the L-arginine producing microorganism is the transformant NRRL B-12427.
Claim 5
Dependent Claim
13 words
An L-arginine producing transformant of the genus Escherichia having the designation NRRL B-12426.
Claim 6
Dependent Claim
13 words
An L-arginine producing transformant of the genus Escherichia having the designation NRRL B-12426.
Claim 7
Dependent Claim
13 words
An L-arginine producing transformant of the genus Escherichia having the designation NRRL B-12427.
Claim 8
Dependent Claim
13 words
An L-arginine producing transformant of the genus Escherichia having the designation NRRL B-12427.
References Cited (Backward Citations)
US4086137A
Cited
US4278765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-06 | 1987-08-08 | 1988-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-06 | 1991-08-08 | 1992-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-06 | 1995-08-08 | 1996-02-07 | $7700.00 | Window Closed / Lapsed |