US3607422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-air cell
Assignee: General Electric Co
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Filing: 1967-08-30
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Granted: 1971-09-21
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Expires: 1987-08-30
Abstract
Abstract A metal-air cell has a cathode, an aqueous electrolyte, a magnesium anode, and an electronically conductive porous grid positioned in contact with the electrolyte and between the cathode and the anode, and connected electrically to the cathode. A modified metal-air cell has such a porous grid connected electrically to a separate reference cathode which is in contact with both the air supply and the electrolyte.
Inventors
- 👤 Paul J Moran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:44
CPC Classifications
H; H01; H01M; H01M12/00; H01M12/04; H01M12/06; H01M12/065; H01M4/00; H01M4/02; H01M2004/024; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
16 words
A metal-air cell according to claim 1, in which the grid has a catalyst deposited thereon.
Claim 2
Dependent Claim
21 words
A metal-air cell as in claim 1, in which the electrolyte is sodium chloride, and the grid is a silver screen.
Claim 3
Dependent Claim
55 words
In a metal-air cell comprising at least one cathode, an aqueous electrolyte, and a magnesium anode, the combination therewith of an electronically conductive porous grid positioned between and spaced from each cathode and the anode, a reference cathode in contact with the electrolyte, and each grid spaced from and connected electrically to the reference cathode.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |