US2966538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic encased flat dry battery stack with means to prevent peripheral electrolyte creep
Assignee: Les Piles Wonder SA
•
Filing: 1958-03-12
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Granted: 1960-12-27
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Expires: 1978-03-12
Abstract
No abstract record available.
Inventors
- 👤 Bernot Lucien Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:31
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/42; H01M6/46; H01M6/04; H01M6/06; H01M6/12
Claims Analysis
Total Claims: 0
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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) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |