US2869064A
Expired / Lapsed
US
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Apparatus and method for enhancing the characteristics of dry cell batteries
Assignee: Compagnie Industrielle des Piles Electriques CIPEL SA
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Filing: 1953-08-03
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Granted: 1959-01-13
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Expires: 1973-08-03
Abstract
No abstract record available.
Inventors
- 👤 Portail Fernand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:15
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/44; H01M6/00; H01M6/04; H01M6/06; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1588607A
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US1631647A
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US2000571A
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US2036547A
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US2369033A
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US2424059A
Cited
FR998615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |