US3772089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary metal-air batteries
Assignee: ZF International UK Ltd
•
Filing: 1971-11-18
•
Granted: 1973-11-13
•
Expires: 1991-11-18
Abstract
Abstract A cell for a primary metal-air battery comprises a pair of electrically interconnected air electrodes positioned on opposite sides respectively of a metal anode and insulated therefrom. Each air electrode includes catalyst material supported on a sheet of porous material and the sheet of porous material are joined together at their peripheries to form a cell compartment including the air electrodes and the anode.
Inventors
- 👤 D Bennett
- 👤 G Shotton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:51
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/04; H01M10/0413; H01M10/045; H01M10/0454; H01M12/00; H01M12/04; H01M12/06; H01M12/065; H01M6/00; H01M6/40; H01M6/42; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/4911; Y10T29/49112
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
34 words
A method as claimed in claim 1 and further including the step of cutting through the regions of the strip joining together adjacent cells so as to form a plurality of separate, individual cells.
References Cited (Backward Citations)
US3239380A
Cited
US3479225A
Cited
US3533845A
Cited
US3494796A
Cited
US3594234A
Cited
US3594235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |