Patent DE462115C successfully refreshed from Google Patents.
US3408233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage batteries and electrolyte therefor
Assignee: International Battery Inc
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Filing: 1966-10-24
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Granted: 1968-10-29
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Expires: 1986-10-24
Abstract
No abstract record available.
Inventors
- 👤 Parker Konrad
- 👤 Jerry L Brosilow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:10
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/06; H01M10/08; H01M10/10; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN A LEAD-ACID STORAGE BATTERY COMPRISING CELLS TO BE LOADED WITH ELECTROLYTE, THE IMPROVEMENT COMPRISING AN ELECTROLYTE FORMING MATERIAL DISPOSED IN SAID CELLS, SAID MATERIAL COMPRISING A DRY MIXTURE CONSISTING ESSENTIALLY OF THE COMBINATION OF FINELY DIVIDED, HIGHLY ABSORBENT SILICA AND CONCENTRATED SULFURIC ACID, SAID BATTERY BEING ADAPTED TO BE ACTIVATED BY THE ADDITION OF WATER TO SAID CELLS WHEREBY SAID ACID IS RELEASED FROM SAID COMBINATION TO FORM AN ELECTROLYTE SOLUTION WITH SAID WATER.
Claim 2
Dependent Claim
75 words
IN A LEAD-ACID STORAGE BATTERY COMPRISING CELLS TO BE LOADED WITH ELECTROLYTE, THE IMPROVEMENT COMPRISING AN ELECTROLYTE FORMING MATERIAL DISPOSED IN SAID CELLS, SAID MATERIAL COMPRISING A DRY MIXTURE CONSISTING ESSENTIALLY OF THE COMBINATION OF FINELY DIVIDED, HIGHLY ABSORBENT SILICA AND CONCENTRATED SULFURIC ACID, SAID BATTERY BEING ADAPTED TO BE ACTIVATED BY THE ADDITION OF WATER TO SAID CELLS WHEREBY SAID ACID IS RELEASED FROM SAID COMBINATION TO FORM AN ELECTROLYTE SOLUTION WITH SAID WATER.
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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |