Patent US3014804A successfully refreshed from Google Patents.
US3014804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing acetic acid from alcohol containing fermentation medium
Assignee: Heinrich Frings GmbH and Co KG
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Filing: 1958-10-02
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Granted: 1961-12-26
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Expires: 1978-10-02
Abstract
No abstract record available.
Inventors
- 👤 Els Heinrich
- 👤 Martens Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:17
CPC Classifications
C; C12; C12J; C12J1/00; C12J1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
THE PROCESS FOR MANUFACTURING ACETIC ACID FROM ALCOHOL-CONTAINING FERMENTATION MEDIUM BY OXIDATIVE FERMENTATION, COMPRISING (A) FERMENTING SUCH MEDIUM KEPT AT A PREDETERMINED TEMPERATURE BY INDIRECT COOLING WITH A COOLING LIQUID, THE COOLING OF WHICH IS AUTOMATICALLY REGULATED IN DEPENDENCE ON THE TEMPERATURE OF THE FERMENTING MEDIUM UNTIL PREDETERMINED CONCENTRATIONS OF ACETIC ACID AND ALCOHOL, RESPECTIVELY, IN SAID MEDIUM ARE ATTAINED, (B) AUTOMATICALLY DISCHARGING A PARTIAL PREDETERMINED AMOUNT OF SAID MEDIUM WHEN SAID PREDETERMINED CONCENTRATIONS ARE REACHED, (C) AT LEAST PARTIALLY REDUCING COOLING OF THE RESIDUAL FERMENTING MEDIUM, (D) AUTOMATICALLY SUPPLYING A PREDETERMINED AMOUNT OF FRESH FERMENTATION MEDIUM TO SAID RESIDUAL FERMENTING MEDIUM, THE RATE OF SAID SUPPLY BEING AUTOMATICALLY REGULATED IN DEPENDENCE ON THE TEMPERATURE OF THE FERMENTING MEDIUM THEREBY MAINTAINING A CONSTANT FERMENTATION TEMPERATION, (E) RESTORING UNREDUCED AUTOMATICAL COOLING OF THE FERMENTING MEDIUM IN DEPENDENCE ON ITS TEMPERATURE, UPON COMPLETING THE SUPPLY OF SAID PREDETERMINED AMOUNT OF FRESH FERMENTATION MEDIUM, (F) CONTINUING FERMENTATION UNTIL SAID PREDETERMINED CONCENTRATIONS OF ACETIC ACID AND ALCOHOL ARE REACHED AGAIN, AND (G) REPEATEDLY CARRYING OUT THE OPERATIONS (A)-(F).
Claim 2
Dependent Claim
174 words
THE PROCESS FOR MANUFACTURING ACETIC ACID FROM ALCOHOL-CONTAINING FERMENTATION MEDIUM BY OXIDATIVE FERMENTATION, COMPRISING (A) FERMENTING SUCH MEDIUM KEPT AT A PREDETERMINED TEMPERATURE BY INDIRECT COOLING WITH A COOLING LIQUID, THE COOLING OF WHICH IS AUTOMATICALLY REGULATED IN DEPENDENCE ON THE TEMPERATURE OF THE FERMENTING MEDIUM UNTIL PREDETERMINED CONCENTRATIONS OF ACETIC ACID AND ALCOHOL, RESPECTIVELY, IN SAID MEDIUM ARE ATTAINED, (B) AUTOMATICALLY DISCHARGING A PARTIAL PREDETERMINED AMOUNT OF SAID MEDIUM WHEN SAID PREDETERMINED CONCENTRATIONS ARE REACHED, (C) AT LEAST PARTIALLY REDUCING COOLING OF THE RESIDUAL FERMENTING MEDIUM, (D) AUTOMATICALLY SUPPLYING A PREDETERMINED AMOUNT OF FRESH FERMENTATION MEDIUM TO SAID RESIDUAL FERMENTING MEDIUM, THE RATE OF SAID SUPPLY BEING AUTOMATICALLY REGULATED IN DEPENDENCE ON THE TEMPERATURE OF THE FERMENTING MEDIUM THEREBY MAINTAINING A CONSTANT FERMENTATION TEMPERATION, (E) RESTORING UNREDUCED AUTOMATICAL COOLING OF THE FERMENTING MEDIUM IN DEPENDENCE ON ITS TEMPERATURE, UPON COMPLETING THE SUPPLY OF SAID PREDETERMINED AMOUNT OF FRESH FERMENTATION MEDIUM, (F) CONTINUING FERMENTATION UNTIL SAID PREDETERMINED CONCENTRATIONS OF ACETIC ACID AND ALCOHOL ARE REACHED AGAIN, AND (G) REPEATEDLY CARRYING OUT THE OPERATIONS (A)-(F).
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) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |