US2917435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of 2-keto-1-gulonic acid by pseudomonas aeruginosa
Assignee: Olin Corp
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Filing: 1956-09-27
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Granted: 1959-12-15
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Expires: 1976-09-27
Abstract
No abstract record available.
Inventors
- 👤 Perlman David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:46
CPC Classifications
C; C07; C07H; C07H7/00; C07H7/02; C07H7/027; C12; C12P; C12P7/00; C12P7/40; C12P7/58; C12P7/60; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/874; Y10S435/875
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A PROCESS FOR PREPARING 2-KETO-UGULONIC ACID, WHICH PROCESS COMPRISES SUBJECTING A WATER SOLUBLE 1-GULONATE TO THE OXIDIZING SYSTEM PRODUCED BY CULTIVATING PSEUDOMONAS AERUGINOSA UNDER AEROBIC CONDITIONS ON AN OTHERWISE STERILE, NUTRIENT MEDIUM.
Claim 2
Dependent Claim
32 words
A PROCESS FOR PREPARING 2-KETO-UGULONIC ACID, WHICH PROCESS COMPRISES SUBJECTING A WATER SOLUBLE 1-GULONATE TO THE OXIDIZING SYSTEM PRODUCED BY CULTIVATING PSEUDOMONAS AERUGINOSA UNDER AEROBIC CONDITIONS ON AN OTHERWISE STERILE, NUTRIENT MEDIUM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |