US2855451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric accumulators
Assignee: Individual
•
Filing: 1954-11-19
•
Granted: 1958-10-07
•
Expires: 1974-11-19
Abstract
No abstract record available.
Inventors
- 👤 Piroux Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:38
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/34; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US340474A
Cited
US380971A
Cited
GB191122281A
Cited
US2441896A
Cited
US2561943A
Cited
US2651669A
Cited
US2571927A
Cited
US2614138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |