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US2694099A
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Lead-acid battery grid
Assignee: Gould National Batteries Inc
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Filing: 1952-11-21
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Granted: 1954-11-09
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Expires: 1972-11-21
Abstract
No abstract record available.
Inventors
- 👤 Harold E Zalin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:09
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/66; H01M4/68; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12701; Y10T428/12771; Y10T428/12861; Y10T428/12896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
IN A BATTERY, A GRID COMPRISING A CORE FORMED OF AN ACID-RESISTANT PLASTIC MATERIAL HAVING A FIRST COAT OF HIGH ELECTRICAL CONDUCTIVITY METAL THEREON AND AN OVERCOAT OF LEAD THEREON.
Claim 2
Dependent Claim
30 words
IN A BATTERY, A GRID COMPRISING A CORE FORMED OF AN ACID-RESISTANT PLASTIC MATERIAL HAVING A FIRST COAT OF HIGH ELECTRICAL CONDUCTIVITY METAL THEREON AND AN OVERCOAT OF LEAD THEREON.
References Cited (Backward Citations)
US1639280A
Cited
US2190121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |