US3369050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation, recovery and recycle of the catalyst complex in the oxo process
Assignee: Shell USA Inc
•
Filing: 1964-10-20
•
Granted: 1968-02-13
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Expires: 1984-10-20
Abstract
No abstract record available.
Inventors
- 👤 Charles R Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:26
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2609337A
Cited
GB647363A
Cited
US2793236A
Cited
US2811567A
Cited
US3239569A
Cited
US3153673A
Cited
US3311598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |