Patent US2646458A successfully refreshed from Google Patents.
US2646458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanic cell
Assignee: Individual
•
Filing: 1949-08-26
•
Granted: 1953-07-21
•
Expires: 1969-08-26
Abstract
No abstract record available.
Inventors
- 👤 Walz Heinz Paul Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:46
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/18; H01M10/00; H01M10/24; H01M12/00; H01M12/04; H01M12/06; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M4/40; H01M6/00; H01M6/04; H01M6/30; H01M6/32; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A GALVANIC CELL COMPRISING AN ALKALI-AMALGAM ELECTRODE AS A NEGATIVE ELECTRODE, AN ALKALI LYE ELECTROLYTE, AND A POSITIVE ELECTRODE CONSISTING OF A METAL OXIDE WHICH IS PRACTICALLY INSOLUBLE IN THE ELECTROLYTE AND THE METAL OXIDE BEING SELECTED FROM THE GROUP CONSISTING OF CUO, AG2O AND NIO2, THE ALKALI-AMALGAM ELECTRODE BEING A FLUID AND IN ALL ITS PARTS HAVING A CONCENTRATION NOT IN EXCESS OF 3% OF THE ALKALI METAL.
Claim 2
Dependent Claim
69 words
A GALVANIC CELL COMPRISING AN ALKALI-AMALGAM ELECTRODE AS A NEGATIVE ELECTRODE, AN ALKALI LYE ELECTROLYTE, AND A POSITIVE ELECTRODE CONSISTING OF A METAL OXIDE WHICH IS PRACTICALLY INSOLUBLE IN THE ELECTROLYTE AND THE METAL OXIDE BEING SELECTED FROM THE GROUP CONSISTING OF CUO, AG2O AND NIO2, THE ALKALI-AMALGAM ELECTRODE BEING A FLUID AND IN ALL ITS PARTS HAVING A CONCENTRATION NOT IN EXCESS OF 3% OF THE ALKALI METAL.
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) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |