Patent US3413203A successfully refreshed from Google Patents.
US3413203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic oxidation of cerium
Assignee: Celanese Corp
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Filing: 1965-08-18
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Granted: 1968-11-26
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Expires: 1985-08-18
Abstract
No abstract record available.
Inventors
- 👤 Alexander F Maclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:17
CPC Classifications
C; C01; C01F; C01F17/00; C01F17/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
PROCESS FOR THE ELECTROLYTIC REGENERATION OF CERIC SALTS FROM CEROUS SALTS IN THE PRESENCE OF CHLORIDE IONS WHICH COMPRISES PROVIDING AN AQUEOUS ACIDIC ELECTROLYTE SOLUTION COMPRISING A CEROUS SALT AND AN AMOUNT OF A COMPLEXING ANION SUFFICIENT TO SUPPRESS THE DISCHARGE POTENTIAL OF CE(VI) RELATIVE TO CHLORINE TO A VALUE ALLOWING SELECTIVE DISCHARGE OF CE (VI) AND PASSING AN ELECTRIC CURRENT THROUGH SAID ELECTROLYTE SOLUTION, CE (III) BEING CONTINUOUSLY TRANSFORMED INTO CE (IV) AT THE ANODE.
Claim 2
Dependent Claim
76 words
PROCESS FOR THE ELECTROLYTIC REGENERATION OF CERIC SALTS FROM CEROUS SALTS IN THE PRESENCE OF CHLORIDE IONS WHICH COMPRISES PROVIDING AN AQUEOUS ACIDIC ELECTROLYTE SOLUTION COMPRISING A CEROUS SALT AND AN AMOUNT OF A COMPLEXING ANION SUFFICIENT TO SUPPRESS THE DISCHARGE POTENTIAL OF CE(VI) RELATIVE TO CHLORINE TO A VALUE ALLOWING SELECTIVE DISCHARGE OF CE (VI) AND PASSING AN ELECTRIC CURRENT THROUGH SAID ELECTROLYTE SOLUTION, CE (III) BEING CONTINUOUSLY TRANSFORMED INTO CE (IV) AT THE ANODE.
References Cited (Backward Citations)
US914251A
Cited
US1264535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |