US2650257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead-acid electric storage battery and process of producing same
Assignee: Clarite Battery Inc
•
Filing: 1949-11-03
•
Granted: 1953-08-25
•
Expires: 1969-11-03
Abstract
No abstract record available.
Inventors
- 👤 Edward L Jolley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:42
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/06; H01M10/08; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
32 words
AN ELECTROLYTE FOR LEAD-ACID ELECTRIC STORAGE BATTERIES, CONSISTING OF A MIXTURE OF COMMERCIAL CONCENTRATED SULFURIC ACID AND AN AQUEOUS LEACH SOLUTION DERIVED FROM BLUEGATE SHALE AND CARRYING A HIGH SULFATE RADICAL CONTENT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |