Patent US3384669A successfully refreshed from Google Patents.
US3384669A
Expired / Lapsed
US
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Process and catalyst for oxidizing olefins to carbonyl compounds
Assignee: Celanese Corp
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Filing: 1963-09-24
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Granted: 1968-05-21
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Expires: 1983-09-24
Abstract
No abstract record available.
Inventors
- 👤 Alexander F Maclean
- 👤 Aldin L Stautzenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:55
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; B01J27/24; B01J27/25; C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |