Patent US3658866A successfully refreshed from Google Patents.
US3658866A
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Catalyst for a hydrosilation reactor
Assignee: Toray Industries Inc
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Filing: 1969-08-07
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Granted: 1972-04-25
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Expires: 1989-08-07
Abstract
Abstract CATALYSTS ARE PROVIDED WHICH AE COMPRISED OF PLLADIUM AND A TRIVALENT PHOSPHORUS, ARSENIC OR ANTIMONY LIGAND. THE CATALYSTS OF THIS INVENTION ARE HIGHLY EFFECTIVE AS CATALYSTS IN HYDROSILATION REACTIONS.
Inventors
- 👤 Jiro Tsuji
- 👤 Michio Hara
- 👤 Kiyotaka Ohno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:15
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/14; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1845; B01J31/185; B01J31/1895; B01J31/24; B01J31/2404; C07F7/0801; C07F7/0803; C07F7/0805; C07F7/0896; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/323; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/824
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |