Patent US2597009A successfully refreshed from Google Patents.
US2597009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydration of alcohols
Assignee: MW Kellogg Co
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Filing: 1948-05-28
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Granted: 1952-05-20
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Expires: 1968-05-28
Abstract
No abstract record available.
Inventors
- 👤 Walter E Lobo
- 👤 George T Skaperdas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:47
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/74; C07C29/76; C07C29/86; C07C29/80; C07C29/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A METHOD FOR SEPARATING AN ALCOHOL FROM AN AQUEOUS SOLUTION WHICH COMPRISES CONTACTING AN AQUEOUS SOLUTION CONTAINNG AN ALCOHOL HAVING AT LEAST THREE CARBON ATOMS PER MOLECULE WITH AT LEAST ONE LIQUID SOLVENT SELECTED FROM THE GROUP CONSISTING OF A BROMOTOLUENE AND HALOGENATED NON-AROMATIC CYCLIC HYDROCARBONS.
Claim 2
Independent Claim
46 words
A METHOD FOR SEPARATING AN ALCOHOL FROM AN AQUEOUS SOLUTION WHICH COMPRISES CONTACTING AN AQUEOUS SOLUTION CONTAINNG AN ALCOHOL HAVING AT LEAST THREE CARBON ATOMS PER MOLECULE WITH AT LEAST ONE LIQUID SOLVENT SELECTED FROM THE GROUP CONSISTING OF A BROMOTOLUENE AND HALOGENATED NON-AROMATIC CYCLIC HYDROCARBONS.
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) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |