US2424149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry cell
Assignee: HARRY B ALBERT
•
Filing: 1944-04-10
•
Granted: 1947-07-15
•
Expires: 1964-04-10
Abstract
No abstract record available.
Inventors
- 👤 Edwin D Chaplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:05
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M4/00; H01M4/02; H01M4/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US350621A
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US406223A
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US611175A
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US636318A
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US653590A
Cited
US742365A
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US1667317A
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AU994832A
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US2358745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-14 | 1951-01-13 | 1951-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-14 | 1955-01-13 | 1955-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-14 | 1959-01-13 | 1959-07-15 | $7700.00 | Window Closed / Lapsed |