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Patent US3539634A successfully refreshed from Google Patents.
US3539634A
Expired / Lapsed
US
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Recovery of catalyst in oxo process
Assignee: Union Oil Company of California
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Filing: 1967-11-09
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Granted: 1970-11-10
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Expires: 1987-11-09
Abstract
No abstract record available.
Inventors
- 👤 Kenneth L Olivier
- 👤 Lloyd R Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:31
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; C01; C01G; C01G55/00; C01G55/001; C22; C22B; C22B3/00; C22B3/20; C22B3/22; C22B3/24; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y02P20/00; Y02P20/50; Y02P20/582
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) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |