US2546548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anode for electrowinning manganese and method of making the same
Assignee: Crimora Res and Dev Corp
•
Filing: 1945-06-23
•
Granted: 1951-03-27
•
Expires: 1965-06-23
Abstract
No abstract record available.
Inventors
- 👤 Koster John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:42
CPC Classifications
C; C25; C25C; C25C7/00; C25C7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
IN THE PREPARATION OF AN ANODE FOR ELECTROWINNING MANGANESE, THE STEPS OF DISPERSING FINEE PARTICLES OF HAND, CORROSION-RESISTANT, NON-METALLIC MATERIAL OF SIZES BETWEEN 10 MESH AND 200 MESH IN A BASE MADE SUBSTANTIALLY OF LEAD; FORMING SAID DISPERSION INTO SUITABLE SHAPE FOR USE AS AN ANODE; AND SUBJECTING THE ANODE TO PRELIMINARY ELECTROLYTIC TREATMENT IN A MANGANESE ELECTROLYTE TO CONVERT SOME OF THE LEAD ON THE SURFACES INTO LEAD OXIDE AND SIMULTANEOUSLY DEPOSITING MANGANESE DIOXIDE THEREON, THEREBY FORMING ANCHORED, ADHERENT COATINGS OF SAID OXIDES ON THE SURFACES OF THE ANODE.
Claim 2
Dependent Claim
90 words
IN THE PREPARATION OF AN ANODE FOR ELECTROWINNING MANGANESE, THE STEPS OF DISPERSING FINEE PARTICLES OF HAND, CORROSION-RESISTANT, NON-METALLIC MATERIAL OF SIZES BETWEEN 10 MESH AND 200 MESH IN A BASE MADE SUBSTANTIALLY OF LEAD; FORMING SAID DISPERSION INTO SUITABLE SHAPE FOR USE AS AN ANODE; AND SUBJECTING THE ANODE TO PRELIMINARY ELECTROLYTIC TREATMENT IN A MANGANESE ELECTROLYTE TO CONVERT SOME OF THE LEAD ON THE SURFACES INTO LEAD OXIDE AND SIMULTANEOUSLY DEPOSITING MANGANESE DIOXIDE THEREON, THEREBY FORMING ANCHORED, ADHERENT COATINGS OF SAID OXIDES ON THE SURFACES OF THE ANODE.
References Cited (Backward Citations)
US190115A
Cited
US224078A
Cited
US539669A
Cited
US627573A
Cited
US1119443A
Cited
US1276614A
Cited
GB147685A
Cited
GB155810A
Cited
US2145746A
Cited
US2159982A
Cited
US2320773A
Cited
US2397831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |