US3592869A
Expired / Lapsed
US
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Olefin oligomerization
Assignee: Shell USA Inc
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Filing: 1968-10-03
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Granted: 1971-07-13
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Expires: 1988-10-03
Abstract
Abstract OLEFINS ARE OLIGOMERIZED WITH A HETEROGENEOUS CATALYST COMPOSITION PRODUCED BY (1) CONTACTING A NICKEL COMPOUND AND AN ALKYL ALUMINUM COMPOUND IN THE PRESENCE OF AN OLEFINIC COMPOUND AND (2) SUBSEQUENTLY CONTACTING THE RESULTING NICKEL-CONTAINING SOLUTION WITH AN INORGANIC REFRACTORY OXIDE SUPPORT.
Inventors
- 👤 Lawrence G Cannell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:30
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/32; B; B01; B01J; B01J31/00; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/16; B01J31/1616; B01J31/22; B01J31/2204; B01J31/2208; B01J31/2226; B01J31/223; B01J31/2234; C07C2/30; B01J2231/00; B01J2231/20; B01J2531/00; B01J2531/80; B01J2531/84; B01J2531/847; C07C2521/00; C07C2521/12; C07C2527/00; C07C2527/06; C07C2527/128; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |