US2908620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of potassium permanganate
Assignee: Carus Chemical Co Inc
•
Filing: 1957-01-09
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Granted: 1959-10-13
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Expires: 1977-01-09
Abstract
No abstract record available.
Inventors
- 👤 Milton B Carus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:50
CPC Classifications
C; C01; C01G; C01G45/00; C01G45/12; C01G45/1207; C01G45/1214; C25; C25B; C25B1/00; C25B1/01; C25B1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
THE PROCESS FOR ELECTROLYTICALLY OXIDIZING POTASSIUM MANGANATE TO POTSIUM PERMANGANATE WHICH COMPRISES PASSING AN AQUEOUS POTASSIUM HYDROXIDE SOLUTION OF POTASSIUM MANGANATE THROUGH A CLOSED ELECTROLYTIC CELL IN FORCED CIRCULATION COCURRENTLY WITH THE FLOW OF GASES PRO-
Claim 2
Dependent Claim
36 words
THE PROCESS FOR ELECTROLYTICALLY OXIDIZING POTASSIUM MANGANATE TO POTSIUM PERMANGANATE WHICH COMPRISES PASSING AN AQUEOUS POTASSIUM HYDROXIDE SOLUTION OF POTASSIUM MANGANATE THROUGH A CLOSED ELECTROLYTIC CELL IN FORCED CIRCULATION COCURRENTLY WITH THE FLOW OF GASES PRO-
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) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |