US3014975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive plate for lead-acid batteries and method for its manufacture
Assignee: Accumulatoren Fabrik AG
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Filing: 1960-01-21
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Granted: 1961-12-26
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Expires: 1980-01-21
Abstract
No abstract record available.
Inventors
- 👤 Gumprecht Herbert
- 👤 Weisselberg Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:06
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/76; H01M4/765; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A POSITIVE ACID STORAGE BATTERY PLATE COMPRISING A PLURALITY OF PENCILS CONSISTING OF A SPINE, ACTIVE MATERIAL, AND AN ENCLOSING TUBE, AND A BOTTOM BAR HAVING AN ANNULAR STUB FITTING INTO EACH PENCIL BETWEEN THE SPINE AND THE ENCLOSING TUBE, EACH STUB HAVING A CONICAL CROSS SECTION OF A HEIGHT AT LEAST EQUAL TO THE HEIGHT OF A CAVITY CREATED BY SHRINKAGE OF THE ACTIVE MATERIAL AT ITS FORMATION AND THE STUB EXTENDING INTO THE SHRUNKEN ACTIVE MATERIAL.
Claim 2
Dependent Claim
78 words
A POSITIVE ACID STORAGE BATTERY PLATE COMPRISING A PLURALITY OF PENCILS CONSISTING OF A SPINE, ACTIVE MATERIAL, AND AN ENCLOSING TUBE, AND A BOTTOM BAR HAVING AN ANNULAR STUB FITTING INTO EACH PENCIL BETWEEN THE SPINE AND THE ENCLOSING TUBE, EACH STUB HAVING A CONICAL CROSS SECTION OF A HEIGHT AT LEAST EQUAL TO THE HEIGHT OF A CAVITY CREATED BY SHRINKAGE OF THE ACTIVE MATERIAL AT ITS FORMATION AND THE STUB EXTENDING INTO THE SHRUNKEN ACTIVE MATERIAL.
References Cited (Backward Citations)
US2806076A
Cited
US2882330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |