Patent US3185745A successfully refreshed from Google Patents.
US3185745A
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Olefin dimerization
Assignee: Ethyl Corp
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Filing: 1961-08-30
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Granted: 1965-05-25
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Expires: 1981-08-30
Abstract
No abstract record available.
Inventors
- 👤 Kenneth L Lindsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:35
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/24; C07C2523/00; C07C2523/02; C07C2523/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR DIMERIZING A STRAIGHT CHAIN OLEFIN CHARACTERIZED BY HAVING ONE DOUBLE BOND AND FROM 3 UP TO ABOUT 8 CARBON ATOMS WHICH COMPRISES HEATING SAID OLEFIN IN CONTACT WITH A CATALYST CONSISTING ESSENTIALLY OF AN ALKALI METAL AND AN OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS HAVING AN ATOMIC NUMBER OF 19 TO 55, INCLUSIVE, AND BARIUM, SAID OXIDE BEING PRESENT IN AN AMOUNT BETWEEN ABOUT 1 TO 50 PERCENT BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE CATLYST MIXTURE.
Claim 2
Dependent Claim
88 words
A PROCESS FOR DIMERIZING A STRAIGHT CHAIN OLEFIN CHARACTERIZED BY HAVING ONE DOUBLE BOND AND FROM 3 UP TO ABOUT 8 CARBON ATOMS WHICH COMPRISES HEATING SAID OLEFIN IN CONTACT WITH A CATALYST CONSISTING ESSENTIALLY OF AN ALKALI METAL AND AN OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS HAVING AN ATOMIC NUMBER OF 19 TO 55, INCLUSIVE, AND BARIUM, SAID OXIDE BEING PRESENT IN AN AMOUNT BETWEEN ABOUT 1 TO 50 PERCENT BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE CATLYST MIXTURE.
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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |