US2717870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of manganese
Assignee: Individual
•
Filing: 1952-02-15
•
Granted: 1955-09-13
•
Expires: 1972-02-15
Abstract
No abstract record available.
Inventors
- 👤 Reginald S Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:56
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
THE METHOD OF ELECTRO-DEPOSITING A SMOOTH BRIGHT PLATE OF MANGANESE WHICH INCLUDES THE STEPS OF PASSING A UNIDIRECTIONAL CURRENT BETWEEN AN ANODE AND AN INSOLUBLE CATHODE IN A SINGLE COMPARTMENT CELL CONTAINING AS THE ELECTROLYTE AN AQUEOUS SOLUTION HAVING A COMPOSITION OF 10-50 GRAMS PER LITER MN, 6-7 MOLES PER LITER NH3 AND A SIMPLE ANION FORMING A SALT WITH MANGANESE AT LEAST AS SOLUBLE AS MANGANESE SULPHATE, IN AN AMOUNT AT LEAST STOICHIOMETRICALLY EQUIVALENT TO THE AMOUNT OF MANGANESE PRESENT IN THE SOLUTION, SAID SOLUTION BEING STRONGLY AMMONONIACAL AND HAVING A PH OF 9.0-10.5 AND THE MANGANESE BEING PREDOMINANTLY IN THE ANION, THE CURRENT DENSITY AT THE CATHODE BEING 100-1,000 AMPERES PER SQUARE FOOT AND THE CURRENT DENSITY AT THE ANODE BEING LESS THAN THAT AT THE CATHODE, AND MAINTAINING THE TEMPERATURE OF SAID ELECTROLYTE BELOW 45* C.
Claim 2
Independent Claim
139 words
THE METHOD OF ELECTRO-DEPOSITING A SMOOTH BRIGHT PLATE OF MANGANESE WHICH INCLUDES THE STEPS OF PASSING A UNIDIRECTIONAL CURRENT BETWEEN AN ANODE AND AN INSOLUBLE CATHODE IN A SINGLE COMPARTMENT CELL CONTAINING AS THE ELECTROLYTE AN AQUEOUS SOLUTION HAVING A COMPOSITION OF 10-50 GRAMS PER LITER MN, 6-7 MOLES PER LITER NH3 AND A SIMPLE ANION FORMING A SALT WITH MANGANESE AT LEAST AS SOLUBLE AS MANGANESE SULPHATE, IN AN AMOUNT AT LEAST STOICHIOMETRICALLY EQUIVALENT TO THE AMOUNT OF MANGANESE PRESENT IN THE SOLUTION, SAID SOLUTION BEING STRONGLY AMMONONIACAL AND HAVING A PH OF 9.0-10.5 AND THE MANGANESE BEING PREDOMINANTLY IN THE ANION, THE CURRENT DENSITY AT THE CATHODE BEING 100-1,000 AMPERES PER SQUARE FOOT AND THE CURRENT DENSITY AT THE ANODE BEING LESS THAN THAT AT THE CATHODE, AND MAINTAINING THE TEMPERATURE OF SAID ELECTROLYTE BELOW 45* C.
References Cited (Backward Citations)
US2119560A
Cited
US2417259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |