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US3402190A
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Method for manufacturing alkylaluminum compounds
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1964-06-16
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Granted: 1968-09-17
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Expires: 1984-06-16
Abstract
No abstract record available.
Inventors
- 👤 Toyoshima Kiyoshi
- 👤 Ryu Hirosuke
- 👤 Matsui Atsuro
- 👤 Ichiki Eiichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:17
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/061; C07F5/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2845447A
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US2831898A
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US3207770A
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US2921876A
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US3100786A
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US2965663A
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US3050540A
Cited
US3077490A
Cited
US3305571A
Cited
US3324160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |