US3594425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroformylation process
Assignee: Texaco Inc
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Filing: 1966-07-07
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Granted: 1971-07-20
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Expires: 1986-07-07
Abstract
Abstract OLEFINS ARE REACTED WITH CARBON MONOXIDE AND HYDROGEN TO YIELD AN ALDEHYDE OR ALCOHOL HAVING ONE MORE CARBON ATOM THAN THE OLEFIN UNDER HYDROFORMYLATION REACTION CONDITIONS IN THE PRESENCE OF A COMPLEX CATALYST COMPRISING AS ESSENTIAL INGREDIENTS A TRANSITION METAL AND A POLYAMINE CONTAINING AT LEAST TWO AMINO-FUNCTIONAL GROUPS WHERE THE AMINO-FUNCTIONAL GROUPS ARE SEPARATED BY ONE TO FOUR CARBON ATOMS.
Inventors
- 👤 Walter H Brader Jr
- 👤 Robert M Gipson
- 👤 Stanley B Cavitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:21
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |