US3556850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead-acid,polyelectrolyte complex containing storage battery and method of storing and handling the same
Assignee: GNB Inc
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Filing: 1966-09-26
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Granted: 1971-01-19
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Expires: 1986-09-26
Abstract
Abstract A WATER-ACTICATABLE DRY-CHARGED LEAD-ACID SECONDARY CELL, HAVING A LEAD PEROXIDE POSITIVE ELECRODE, A SPONGE METALLIC LEAD NEGATIVE ELECTRODE, AND A CELL CONTAINER, IS PROVIDED WITH A POLYELECTROLYTE COMPLEX OF IONICALLY BONDED POLYCATIONIC AND POLYANIONIC ORGANIC RESINS WITHIN THE CELL. THE COMPLEX CONTAINS SULFURIC ACID IN AN AMOUNT SUFFICIENT TO PROVIDE A SULFURIC ACID ELECTROLYTE UPON THE ADDITION OF WATER TO THE CELL TO THEREBY ACTIVATE THE CELL.
Inventors
- 👤 David L Douglas
- 👤 Henry J Banas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:27
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/06; H01M10/08; H01M10/10; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |