Patent US2384206A successfully refreshed from Google Patents.
US3157705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of alcohols
Assignee: Distillers Co Yeast Ltd
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Filing: 1960-11-28
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Granted: 1964-11-17
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Expires: 1980-11-28
Abstract
No abstract record available.
Inventors
- 👤 Pearce Norman Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:11
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/09; C07C29/12; C07C29/124; C07C35/00; C07C35/02; C07C35/08; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A PROCESS OF PRODUCING AN ALCOHOL WHICH COMPRISES DISPERSING A HALIDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL AND CYCLOHEXYL CHLORIDES, BROMIDES AND IODIDES IN AN N;N''DIMETHYL AMIDE OF A SATURATED CARBOXYLIC ACID AND CONTACTING THE DISPERSION WITH WATER SELECTED FROM THE GROUP CONSISTING OF FORMIC ACID AND ACETIC ACID, AT A TEMPERATURE BETWEEN 15*C. AND THE BOILING POINT OF THE REACTION MIXTURE.
Claim 2
Dependent Claim
64 words
A PROCESS OF PRODUCING AN ALCOHOL WHICH COMPRISES DISPERSING A HALIDE SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL AND CYCLOHEXYL CHLORIDES, BROMIDES AND IODIDES IN AN N;N''DIMETHYL AMIDE OF A SATURATED CARBOXYLIC ACID AND CONTACTING THE DISPERSION WITH WATER SELECTED FROM THE GROUP CONSISTING OF FORMIC ACID AND ACETIC ACID, AT A TEMPERATURE BETWEEN 15*C. AND THE BOILING POINT OF THE REACTION MIXTURE.
References Cited (Backward Citations)
DE361042C
Cited
US2072016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |