Patent US3104271A successfully refreshed from Google Patents.
US3104271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin dimerization
Assignee: Ethyl Corp
•
Filing: 1961-08-30
•
Granted: 1963-09-17
•
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
2026-11-02 04:42
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/24; C07C2523/00; C07C2523/02; C07C2523/04; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/138
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS FOR DIMERIZING AND OLEFIN BEING 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 COMPRISING AN ALKALI METAL AND A FLUORIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS HAVING AN ATOMIC NUMBER OF 19 TO 55, INCLUSIVE, AND BARIUM, SAID FLUORIDE BEING PRESENT IN AN AMOUNT BETWEEN ABOUT 1 TO 50 PERCENT BY WEIGHT BASED ON THE TOTAL WEIGHT OF SAID ALKALI METAL AND SAID FLUORIDE.
Claim 2
Dependent Claim
88 words
A PROCESS FOR DIMERIZING AND OLEFIN BEING 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 COMPRISING AN ALKALI METAL AND A FLUORIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS HAVING AN ATOMIC NUMBER OF 19 TO 55, INCLUSIVE, AND BARIUM, SAID FLUORIDE BEING PRESENT IN AN AMOUNT BETWEEN ABOUT 1 TO 50 PERCENT BY WEIGHT BASED ON THE TOTAL WEIGHT OF SAID ALKALI METAL AND SAID FLUORIDE.
References Cited (Backward Citations)
US2881234A
Cited
US2986588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |