Patent US2463565A successfully refreshed from Google Patents.
US2463565A
Expired / Lapsed
US
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Dry primary cell
Assignee: Individual
•
Filing: 1942-12-09
•
Granted: 1949-03-08
•
Expires: 1962-12-09
Abstract
No abstract record available.
Inventors
- 👤 Ruben Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:18
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M50/00; H01M50/40; H01M50/471; H01M50/474; H01M50/477; H01M50/48; H01M50/486; H01M6/10; H01M6/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/49115
Claims Analysis
Total Claims: 0
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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) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |