US3170816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead-acid storage battery
Assignee: VARTA AG
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Filing: 1960-10-12
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Granted: 1965-02-23
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Expires: 1980-10-12
Abstract
No abstract record available.
Inventors
- 👤 Voss Ernst
- 👤 Dehmelt Klaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:18
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/52; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A LEAD-ACID STORAGE BATTERY CELL COMPRISING A LIQUID ACIDIC ELECTROLYTE AND, WITHIN THE ELECTROLYTE, A POSITIVE LEAD ELECTRODE, A NEGATIVE LEAD ELECTRODE, AND A GAS CONSUMING AUXILIARY ELECTRODE OF A LIQUID MERCURIAL SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MERCURY AND MERCURY ALLOYS, POROUS PLATES OF A MATERIAL SUBSTANTIALLY INERT TO THE ELECTROLYTE BEING PROVIDED FOR HOLDING THE LIQUID MERCURIAL SUBSTANCE THEREBETWEEN, THE PLATES HAVING PORE DIAMETERS BETWEEN ABOUT 40U AND ABOUT 90U.
Claim 2
Dependent Claim
73 words
A LEAD-ACID STORAGE BATTERY CELL COMPRISING A LIQUID ACIDIC ELECTROLYTE AND, WITHIN THE ELECTROLYTE, A POSITIVE LEAD ELECTRODE, A NEGATIVE LEAD ELECTRODE, AND A GAS CONSUMING AUXILIARY ELECTRODE OF A LIQUID MERCURIAL SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF MERCURY AND MERCURY ALLOYS, POROUS PLATES OF A MATERIAL SUBSTANTIALLY INERT TO THE ELECTROLYTE BEING PROVIDED FOR HOLDING THE LIQUID MERCURIAL SUBSTANCE THEREBETWEEN, THE PLATES HAVING PORE DIAMETERS BETWEEN ABOUT 40U AND ABOUT 90U.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |