Patent US2945846A successfully refreshed from Google Patents.
US2945846A
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US
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Polymerization of olefins with catalyst of aluminum tributenyl and titanium tetrachloride
Assignee: BASF SE
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Filing: 1956-07-13
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Granted: 1960-07-19
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Expires: 1976-07-13
Abstract
No abstract record available.
Inventors
- 👤 Wisseroth Karl
- 👤 Kastning Ernst-Guenther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:28
CPC Classifications
C; C08; C08F; C08F10/00; C08F12/00; C08F12/02; C08F12/04; C08F12/06; C08F12/08; C08F136/00; C08F136/02; C08F136/04; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2606179A
Cited
BE533362A
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US2721189A
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US2822357A
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US2879263A
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US2839518A
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US2843577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |