US2864880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery construction and cell therefor
Assignee: Duracell Inc USA
•
Filing: 1954-09-27
•
Granted: 1958-12-16
•
Expires: 1974-09-27
Abstract
No abstract record available.
Inventors
- 👤 Gordon E Kaye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:41
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/12; H01M50/00; H01M50/50; H01M50/543; H01M50/564
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB269977A
Cited
DE494929C
Cited
US2116091A
Cited
US2536698A
Cited
US2591355A
Cited
US2672498A
Cited
US2666800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |