US2582845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for reducing local action in lead acid storage batteries
Assignee: Exide Technologies LLC
•
Filing: 1945-11-28
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Granted: 1952-01-15
•
Expires: 1965-11-28
Abstract
No abstract record available.
Inventors
- 👤 Murphy Harold Purves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:31
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/06; H01M10/08; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN A LEAD ACID STORAGE BATTERY CELL COMPRISING POSITIVE AND NEGATIVE ELECTRODES HAVING GRIDS CONTAING ANTIMONY ASSEMBLED WITH ELECTROYLE IN A SUITABLE CONTAINER, THE IMPROVEMENT WHICH CONSISTS IN THE INCORPORATION IN THE CELL IN CONTACT WITH THE ELECTROLYTE OF A SOLUBLE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF CADMIUM AND ZINC IN A QUANTITY WHICH WILL PROVIDE AN AMOUNT OF METAL BETWEEN THE LIMITS OF 0.1 TO 50 MILLIGRAMS PER SQUARE INCH OF NEGATIVE ELECTRODES SURFACE.
Claim 2
Dependent Claim
79 words
IN A LEAD ACID STORAGE BATTERY CELL COMPRISING POSITIVE AND NEGATIVE ELECTRODES HAVING GRIDS CONTAING ANTIMONY ASSEMBLED WITH ELECTROYLE IN A SUITABLE CONTAINER, THE IMPROVEMENT WHICH CONSISTS IN THE INCORPORATION IN THE CELL IN CONTACT WITH THE ELECTROLYTE OF A SOLUBLE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF CADMIUM AND ZINC IN A QUANTITY WHICH WILL PROVIDE AN AMOUNT OF METAL BETWEEN THE LIMITS OF 0.1 TO 50 MILLIGRAMS PER SQUARE INCH OF NEGATIVE ELECTRODES SURFACE.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |