US3564071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dimerization of alpha-olefins
Assignee: Tosoh Corp
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Filing: 1968-10-11
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Granted: 1971-02-16
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Expires: 1988-10-11
Abstract
Abstract PROCESS OF CATALYTIC DIMERIZATION OR CO-DIMERIZATION OF A-OLEFINS COMPRISING ETHYLENE AND/OR PROPYLENE IN THE PRESENCE OF THE COMPLEX CATALYST CONSISNTING OF ORGANOALUMINUM COMPOUNDS AND AT LEAST ONE OF TITANATES SELECTED FROM THE GROUP CONSISTING OF TRI-ALKYLTITANATES AND TETRAARYLTITANATES(E.G. TETRA-PHENYLTINATES AND/OR TETRA-TOLYLTITANATE ET AL.).
Inventors
- 👤 Shoichi Izawa
- 👤 Shizuo Yamada
- 👤 Yaichiro Ono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:39
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |