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US2497725A
Expired / Lapsed
US
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Recovery of manganese by electrolysis
Assignee: New Jersey Zinc Co
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Filing: 1947-04-26
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Granted: 1950-02-14
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Expires: 1967-04-26
Abstract
No abstract record available.
Inventors
- 👤 Frank S Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:37
CPC Classifications
C; C25; C25C; C25C1/00; C25C1/06; C25C1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN THE RECOVERY OF METALLIC MANGANESE BY ELECTRODEPOSITION IN A DIAPHRAGM CELL FROM AN ELECTROLYTE CONSISTING ESSENTIALLY OF A SOLUTION OF MANGANESE AND AMMONIUM SULFATES, THE IMPROVEMENT WHICH COMPRISES INCLUDING IN THE CATHOLYTE FROM 0.1 TO 1 GRAM PER LITER OF AN ORGANIC SMOOTHING AGENT OF THE GROUP OF ORGANIC ACIDS CONSISTING OF ADIPIC, ASPARTIC, AZELAIC, GLUTAMIC, GLUTARIC, MALEIC, MALONIC, PHTHALIC, AND SUCCINIC ACIDS.
Claim 2
Dependent Claim
64 words
IN THE RECOVERY OF METALLIC MANGANESE BY ELECTRODEPOSITION IN A DIAPHRAGM CELL FROM AN ELECTROLYTE CONSISTING ESSENTIALLY OF A SOLUTION OF MANGANESE AND AMMONIUM SULFATES, THE IMPROVEMENT WHICH COMPRISES INCLUDING IN THE CATHOLYTE FROM 0.1 TO 1 GRAM PER LITER OF AN ORGANIC SMOOTHING AGENT OF THE GROUP OF ORGANIC ACIDS CONSISTING OF ADIPIC, ASPARTIC, AZELAIC, GLUTAMIC, GLUTARIC, MALEIC, MALONIC, PHTHALIC, AND SUCCINIC ACIDS.
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) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |