US3065155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic manganese dioxide process
Assignee: Manganese Chemicals Corp
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Filing: 1960-09-02
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Granted: 1962-11-20
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Expires: 1980-09-02
Abstract
No abstract record available.
Inventors
- 👤 Jay Y Welsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:43
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/50; C; C25; C25B; C25B1/00; C25B1/01; C25B1/21; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN AN ELECTROLYTIC PROCESS OF PRODUCING BATTERY-GRADE MANGANESE DIOXIDE INVOLVING THE STEP OF CONTINOUSLY FEEDING AN ELECTROLYTE SLURRY THE LIQUID PHASE OF WHICH CONSISTS ESSENTIALLY OF AN AQUEOUS ACIDIC SOLUTION OF MANGANESE SULPHATE THROUGH AN ELECTROLYTIC CELL AND SIMULTANEOUSLY EFFECTING ELECTROLYSIS IN SAID CELL BY PASSING UNDIRECTIONAL CURRENT THROUGH THE ELECTROLYTE FROM A LEAD ANODE TO A CATHODE IMMERSED IN SAID ELECTROLYTE THE IMPROVEMENT WHICH CONSISTS IN EFFECTING THE PRECIPITATION OF MANGANESE DIOXIDE SOLELY IN THE BODY OF ELECTROLYTE AND IN THE FORM OF RELATIVELY COARSE DISCRETE PARTICLES BY AGITATING THE BODY OF ELECTROLYTE AND INSURING THAT THE BODY OF ELECTROLYTE CONTAINS A CONCENTRATION OF MN+3ION OF BETWEEN 0.7 AND 4 GRAMS PER LITER, THAT MN+3ION IS THE SUBSTANTIALLY SOLE ANODE PRODUCT, AND THAT THE MN-Q2PRODUCING REACTION
Claim 2
Dependent Claim
127 words
IN AN ELECTROLYTIC PROCESS OF PRODUCING BATTERY-GRADE MANGANESE DIOXIDE INVOLVING THE STEP OF CONTINOUSLY FEEDING AN ELECTROLYTE SLURRY THE LIQUID PHASE OF WHICH CONSISTS ESSENTIALLY OF AN AQUEOUS ACIDIC SOLUTION OF MANGANESE SULPHATE THROUGH AN ELECTROLYTIC CELL AND SIMULTANEOUSLY EFFECTING ELECTROLYSIS IN SAID CELL BY PASSING UNDIRECTIONAL CURRENT THROUGH THE ELECTROLYTE FROM A LEAD ANODE TO A CATHODE IMMERSED IN SAID ELECTROLYTE THE IMPROVEMENT WHICH CONSISTS IN EFFECTING THE PRECIPITATION OF MANGANESE DIOXIDE SOLELY IN THE BODY OF ELECTROLYTE AND IN THE FORM OF RELATIVELY COARSE DISCRETE PARTICLES BY AGITATING THE BODY OF ELECTROLYTE AND INSURING THAT THE BODY OF ELECTROLYTE CONTAINS A CONCENTRATION OF MN+3ION OF BETWEEN 0.7 AND 4 GRAMS PER LITER, THAT MN+3ION IS THE SUBSTANTIALLY SOLE ANODE PRODUCT, AND THAT THE MN-Q2PRODUCING REACTION
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) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |