Patent US3706056A successfully refreshed from Google Patents.
US3706056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parallel-pole circuit breaker
Assignee: Schneider Electric USA Inc
•
Filing: 1971-08-09
•
Granted: 1972-12-12
•
Expires: 1991-08-09
Abstract
Abstract A FOUR-POLE CIRCUIT BREAKER HAVING TWO LINE TERMINALS AND TWO LOAD TERMINALS, EACH TERMINAL SERVING TWO POLES ELECTRICALLY CONNECTED IN PARALLEL. THE MOVABLE CONTACT ARMS OF EACH PAIR OF PARALLEL POLES ARE CONNECTED TO A SINGLE THERMAL AND MAGNETIC TRIPPING DEVICE IN ONE POLE SPACE, THE OTHER POLE SPACE HAVING NO TRIPPING DEVICE BUT BEING PROVIDED WITH A LATCH WHICH ALSO SERVES AS A TRIP INDICATOR FOR THE CIRCUIT BREAKER WHEN THE POLE SPACE IS PROVIDED WITH A WINDOW.
Inventors
- 👤 Ferdinand E Chabot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:52
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/1045; H01H71/1009; H01H2071/1036
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |