Patent US3657368A successfully refreshed from Google Patents.
US3657368A
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Catalysis by dispersions of metal halides in molten trihalostannate(ii) and trihalogermanate(ii) salts
Assignee: EIDP Inc
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Filing: 1970-11-24
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Granted: 1972-04-18
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Expires: 1990-11-24
Abstract
Abstract DISPERISIONS OF TRANSITION AND OTHER METAL HALIDES IN MOLTEN TETRAHYDROCARBYLAMMONIUM OR PHOSPHOMIUM TRIHALOSTANNATE (II) AND TRIHALOGERMANATE (II) SALTS ARE USEFUL AS CATALYSTS FOR THE HYDROGENATION, ISOMERIZATION OR CARBONYLATION OF OLEFINS AND THE HYDROGENATION OF NITRILES.
Inventors
- 👤 George W Parshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:50
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; C07C209/00; C07C209/44; C07C209/48; C07C45/00; C07C45/61; C07C45/62; C07C5/13; C07C51/00; C07C51/10; C07C51/14; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/10; C07C2531/00; C07C2531/16; C07C2531/22; C07C2531/24; C07C2601/00; C07C2601/18; C07C2601/20; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
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) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |