US2682546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of gamma-acetopropanol
Assignee: EIDP Inc
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Filing: 1952-02-20
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Granted: 1954-06-29
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Expires: 1972-02-20
Abstract
No abstract record available.
Inventors
- 👤 Harry B Copelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:35
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/56; C07C45/57; C07C45/59
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
THE METHOD OF PREPARING Y-ACETOPROPANOL COMPRISING REACTING AT A TEMPERATURE OF 0-150* C. A SOLUTION OF 2-METHYLFURAN IN A LOWER SATURATED DIALKYL KETONE HAVING FROM 3-5 CARBON ATOMS, WHICH SOLUTION CONTAINS AT LEAST 0.5 PART OF SAID KETONE PER PART BY WEIGHT OF SAID 2METHYLFURAN, WITH HYDROGEN AND WATER IN THE PRESENCE OF A METALLIC PALLADIUM CATALYST AND OF A SMALL AMOUNT OF A STRONG MINERAL ACID, THE REACTION MIXTURE CONTAINING NOT MORE THAN 5 MOLES OF WATER PER MOLE OF 2-METHYLFURAN BEING REACTED.
Claim 2
Independent Claim
84 words
THE METHOD OF PREPARING Y-ACETOPROPANOL COMPRISING REACTING AT A TEMPERATURE OF 0-150* C. A SOLUTION OF 2-METHYLFURAN IN A LOWER SATURATED DIALKYL KETONE HAVING FROM 3-5 CARBON ATOMS, WHICH SOLUTION CONTAINS AT LEAST 0.5 PART OF SAID KETONE PER PART BY WEIGHT OF SAID 2METHYLFURAN, WITH HYDROGEN AND WATER IN THE PRESENCE OF A METALLIC PALLADIUM CATALYST AND OF A SMALL AMOUNT OF A STRONG MINERAL ACID, THE REACTION MIXTURE CONTAINING NOT MORE THAN 5 MOLES OF WATER PER MOLE OF 2-METHYLFURAN BEING REACTED.
References Cited (Backward Citations)
US2444301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |