US3636159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroformylation process and catalyst
Assignee: Phillips Petroleum Co
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Filing: 1968-12-19
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Granted: 1972-01-18
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Expires: 1988-12-19
Abstract
Abstract HYDROFORMYLATION REACTIONS ARE CARRIED OUT IN THE PRESENCE OF A CATALYST COMPRISING A SOLID POLYMER OF A PYRI DINE HAVING ASSOCIATED THEREWITH A METAL OF THE GROUP COBALT, RHODIUM, RUTHENIUM, PLATINUM AND PALLADIUM, THE POLYMER, WHICH CAN BE FORMED IN PART OF A POLYVINYLAROMATIC COMPOUND, IS USED TO REMOVE CATALYST RESIDUES FROM HYDROFORMYLATION REACTION EFFLUENT STREAMS.
Inventors
- 👤 Paul W Solomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:16
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50
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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |