US3140239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microbiological oxidation of kojic acid to comenic acid
Assignee: Pfizer Inc
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Filing: 1962-09-26
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Granted: 1964-07-07
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Expires: 1982-09-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Fred W Tanner
- 👤 Joseph L Sardinas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:32
CPC Classifications
C; C12; C12P; C12P17/00; C12P17/02; C12P17/06; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/912; Y10S435/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PROCESS FOR THE PREPARATION OF COMENIC ACID FROM KOJIC ACID WHICH PROCESS COMPRISES CULTIVATING UNDER SUBMERGED AEROBIC CONDITIONS A COMENIC ACID-PRODUCING SPECIES SELECTED FROM THE GROUP CONSISTING OF THE GENUS FUSARIUM AND THE GENUS ABSIDIA IN AN AQUEOUS NUTRIENT MEDIUM COMPRISING KOJIC ACID, A SOURCE OF NITROGEN, A SOURCE OF CARBON AND A SOURCE OF MINERALS.
Claim 2
Dependent Claim
57 words
A PROCESS FOR THE PREPARATION OF COMENIC ACID FROM KOJIC ACID WHICH PROCESS COMPRISES CULTIVATING UNDER SUBMERGED AEROBIC CONDITIONS A COMENIC ACID-PRODUCING SPECIES SELECTED FROM THE GROUP CONSISTING OF THE GENUS FUSARIUM AND THE GENUS ABSIDIA IN AN AQUEOUS NUTRIENT MEDIUM COMPRISING KOJIC ACID, A SOURCE OF NITROGEN, A SOURCE OF CARBON AND A SOURCE OF MINERALS.
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |