Patent US3147198A successfully refreshed from Google Patents.
US3147198A
Expired / Lapsed
US
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C6 olefin separation using a halohydrocarbon
Assignee: Ethyl Corp
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Filing: 1960-10-31
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Granted: 1964-09-01
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Expires: 1980-10-31
Abstract
No abstract record available.
Inventors
- 👤 Kenneth L Lindsay
- 👤 James D Byrd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:58
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/04; C07C7/05; C07C7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD FOR EFFECTIVELY SEPARATING A MONO-OLEFIN FROM A HYDROCARBON MIXTURE CONSISTING ESSENTIALLY OF AT LEAST TWO MONO-OLEFINIC HYDROCARBONS EACH HAVING SIX CARBON ATOMS IN THE MOLECULE AND THE SAME CARBON SKELETON BUT DIFFERING IN THE POSITION OF THE DOUBLE BOND, WHICH METHOD COMPRISES DISTILLING THE MIXTURE WHEN MIXED AND DISSOLVED IN AN ESSENTIALLY INERT HALOHYDROCARBON HAVING A BOILING POINT GREATER THAN ANY INDIVIDUAL MONO-OLEFINIC HYDROCARBON CONTAINED IN THE MIXTURE TREATED, SELECTED FROM A GROUP CONSISTING OF TETRACHLOROETHYLENE, ETHYLENE DIBROMIDE, TRICHLOROETHYLENE, 1,1,1-TRICHLOROETHANE AND 1, 1,2-TRICHLOROETHANE.
Claim 2
Independent Claim
85 words
A METHOD FOR EFFECTIVELY SEPARATING A MONO-OLEFIN FROM A HYDROCARBON MIXTURE CONSISTING ESSENTIALLY OF AT LEAST TWO MONO-OLEFINIC HYDROCARBONS EACH HAVING SIX CARBON ATOMS IN THE MOLECULE AND THE SAME CARBON SKELETON BUT DIFFERING IN THE POSITION OF THE DOUBLE BOND, WHICH METHOD COMPRISES DISTILLING THE MIXTURE WHEN MIXED AND DISSOLVED IN AN ESSENTIALLY INERT HALOHYDROCARBON HAVING A BOILING POINT GREATER THAN ANY INDIVIDUAL MONO-OLEFINIC HYDROCARBON CONTAINED IN THE MIXTURE TREATED, SELECTED FROM A GROUP CONSISTING OF TETRACHLOROETHYLENE, ETHYLENE DIBROMIDE, TRICHLOROETHYLENE, 1,1,1-TRICHLOROETHANE AND 1, 1,2-TRICHLOROETHANE.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |