US3686245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halo(haloorgano)bis(triorganophosphine)nickel(ii) complexes for olefin dimerization
Assignee: Phillips Petroleum Co
•
Filing: 1970-06-29
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Granted: 1972-08-22
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Expires: 1990-06-29
Abstract
Abstract NICKEL COMPLEX COMPOSITIONS CONSISTING OF HALO(HALOORGANO) BIS(TRIORGANOPHOSPHINE) NICKEL(II) WHICH ARE SUITABLE AS OLEFIN DIMERIZATION CATALYSTS WHEN IN THE PRESENCE OF AN ACTIVATING COCATALYST.
Inventors
- 👤 Darryl R Fahey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:53
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |