Patent US2473546A successfully refreshed from Google Patents.
US2473546A
Expired / Lapsed
US
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Alkaline primary cell
Assignee: Individual
•
Filing: 1943-01-23
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Granted: 1949-06-21
•
Expires: 1963-01-23
Abstract
No abstract record available.
Inventors
- 👤 Ruben Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:07
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/10; H01M4/00; H01M4/02; H01M4/06; H01M6/42; H01M6/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US405196A
Cited
US1309561A
Cited
US856162A
Cited
US1028354A
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US1011485A
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US1219074A
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US1486172A
Cited
US1489328A
Cited
US1548539A
Cited
US1798287A
Cited
US1863791A
Cited
GB326822A
Cited
GB399561A
Cited
US2231319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |