Patent US3131137A successfully refreshed from Google Patents.
US3131137A
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Method for conducting an electrochemical oxidation
Assignee: Individual
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Filing: 1962-07-19
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Granted: 1964-04-28
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Expires: 1982-07-19
Abstract
No abstract record available.
Inventors
- 👤 Earl B Lancaster
- 👤 Howard F Conway
- 👤 Frank C Wohlrabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:47
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
5 TO 1.0 INCH APART; (B) CONTINUOUSLY FORCE-CIRCULATING THE SOLUTION OF SODIUM IODATE AND REACTION PRODUCTS INTO AND OUT OF THE ANOLYTE CHAMBER; AND (C) PASSING A CURRENT OF ABOUT FROM 5 TO 75 AMPERES THROUGH THE SOLUTION, THE DIMENSIONS OF THE ANODE AND CATHODE BEING SUCH AS TO PROVIDE AN ANODE CURRENT DENSITY OF ABOUT FROM 0.06 TO 0.078 AMPERE/SQ.CM.
Claim 2
Independent Claim
94 words
A METHOD OF ELECTROCHEMICALLY OXIDIZING SODIUM IODATE TO SODIUM PERIODATE AT A CURRENT EFFICIENCY OF ABOUT FROM 60 TO 75 PERCENT COMPRISING (A) INTRODUCING A SOLUTION OF SODIUM IODATE INTO AN ANNULAR ANOLYTE CHAMBER OF A COAXIAL CELL, SAID CELL COMPRISING AN OUTER ELONGATED CYLINDRICAL ANODE, A COAXIALLY DISPOSED ELONGATED CYLINDRICAL POROUS DIAPHRAGM WITHIN THE ANODE,AND A COAXIALLY DISPOSED ELONGATED CATHODE WITHIN THE DIAPHRAGM, SAID ANOLYTE CHAMBER BEING DEFINED BY THE INNER WALL OF THE ANODE AND THE OUTER WALL OF THE DIAPHRAGM, SAID INNER WALL AND OUTER WALL BEING UNIFORMLY SPACED ABOUT FROM
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |