US2667527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deferred action battery
Assignee: Willard Storage Battery Co
•
Filing: 1949-08-15
•
Granted: 1954-01-26
•
Expires: 1969-08-15
Abstract
No abstract record available.
Inventors
- 👤 Leo E Pucher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:08
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/42; H01M6/46; H01M6/30; H01M6/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22065E
Cited
US300666A
Cited
US229122A
Cited
US1509209A
Cited
US1562945A
Cited
US1610261A
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US1640039A
Cited
US1633224A
Cited
US1863794A
Cited
US2066010A
Cited
US2151193A
Cited
US2209185A
Cited
GB556907A
Cited
US2473546A
Cited
US2502723A
Cited
US2491640A
Cited
US2543106A
Cited
US2564495A
Cited
US2529511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |