US2510141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charging secondary electric batteries
Assignee: International Standard Electric Corp
•
Filing: 1947-04-05
•
Granted: 1950-06-06
•
Expires: 1967-04-05
Abstract
No abstract record available.
Inventors
- 👤 Richards Edward Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:11
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/02; H02J7/04; H02J7/90; H02J7/96
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US374673A
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US1577028A
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US1439893A
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US1538588A
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US1812628A
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US2165174A
Cited
US2227118A
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US2272745A
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US2285620A
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US2334289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-05 | 1953-12-05 | 1954-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-05 | 1957-12-05 | 1958-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-05 | 1961-12-05 | 1962-06-06 | $7700.00 | Window Closed / Lapsed |