US3780096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recovering cobalt and manganese oxidation catalysts
Assignee: Braskem America Inc
•
Filing: 1971-07-01
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Granted: 1973-12-18
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Expires: 1991-07-01
Abstract
Abstract A MINERAL ACID IS ADDED TO A MIXTURE CONTAINING AN OXIDATION CATALYST AND A CARBOXYLIC ACID TO PRECIPITATE THE OXIDATION CATALYST.
Inventors
- 👤 T Johnson
- 👤 A County
- 👤 J Schelling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:16
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/42
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |