US2808486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually operable trip-free circuit breaker
Assignee: Individual
•
Filing: 1954-02-12
•
Granted: 1957-10-01
•
Expires: 1974-02-12
Abstract
No abstract record available.
Inventors
- 👤 Berthier Emile Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:30
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/40; H01H71/04; H01H71/123; H01H71/14; H01H71/16; H01H71/50; H01H71/505; H01H73/00; H01H73/22; H01H73/30; H01H83/00; H01H83/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1990122A
Cited
US2043470A
Cited
US2156761A
Cited
US2127319A
Cited
US2335082A
Cited
US2467653A
Cited
US2519297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |