US3843466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing dicarboxylic acids by fermentation
Assignee: Ajinomoto Co Inc
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Filing: 1973-10-05
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Granted: 1974-10-22
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Expires: 1993-10-05
Abstract
Abstract 1. A METHOD OF PRODUCING AN A,W,N-ALKANEDIOIC ACID HAVING A CARBON CHAIN OF 12 TO 18 CARBON ATOMS WHICH COMPRISES: (A) CONTACTING A COMPOUND HAVING A STRAIGHT CARBON CHAIN AND THE FORMULA R-CNH2N-M-R'' IN AN AQUEOUS MEDIUM UNDER AEROBIC CONDITIONS WITTH AN ENZYME OF CANDIDA CLOACAE FERM P-736 UNTIL SAID ALKANEDIOIC ACID IS ACCUMULATED IN SAID MEDIUM; AND (B) RECOVERING THE ACCUMULATED ALKANEDIOIC ACID FROM SAID MEDIUM, (1) IN SAID FORMULA BEING METHYL METHYLOL, FORMYL, OR CARBOXYL; R'' BEING METHYL, METHYLOL, FORMYL, OR CARBOXYL; R'' BEING METHYL, METHYLOL, OR FORMYL; N BEING AN INTEGER BETWEEN 10 AND 16; AND M BEING TWO OR ZERO.
Inventors
- 👤 R Uchio
- 👤 S Akabori
- 👤 I Shiio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:40
CPC Classifications
C; C12; C12P; C12P7/00; C12P7/40; C12P7/44; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/921; Y10S435/923; Y10S435/924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A METHOD OF PRODUCING AN A,W,N-ALKANEDIOIC ACID HAVING A CARBON CHAIN OF 12 TO 18 CARBON ATOMS WHICH COMPRISES: (A) CONTACTING A COMPOUND HAVING A STRAIGHT CARBON CHAIN AND THE FORMULA
Claim 2
Independent Claim
31 words
A METHOD OF PRODUCING AN A,W,N-ALKANEDIOIC ACID HAVING A CARBON CHAIN OF 12 TO 18 CARBON ATOMS WHICH COMPRISES: (A) CONTACTING A COMPOUND HAVING A STRAIGHT CARBON CHAIN AND THE FORMULA
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) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |