Patent US2293335A successfully refreshed from Google Patents.
Patent US3264428A successfully refreshed from Google Patents.
US3264428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relay in combination with a circuit breaker for auxiliary tripping of the latter
Assignee: Heinemann Electric Co
•
Filing: 1963-04-29
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Granted: 1966-08-02
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Hollyday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:12
CPC Classifications
H; H01; H01H; H01H83/00; H01H83/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
IN COMBINATION, A CIRCUIT BREAKER HAVING A CASE ENCLOSING A PAIR OF SEPARABLE CONTACTS, AN AUTOMATICALLY RESETTABLE LINKAGE CONNECTED TO AND CONTROLLING ONE OF SAID CONTACTS, A LATCH FORMING PART OF SAID LINKAGE, AN ELECTROMAGNETIC COIL AND A PIVOTAL ARMATURE MOVABLE INTO ENGAGEMENT WITH SAID LATCH TO TRIP SAID LINKAGE ON PREDETERMINED OVERLOAD CURRENTS, AND A TRIP FINGER MEANS EXTENDING THROUGH SAID CASE AND ENGAGING SAID ARMATURE TO MOVE THE LATTER INTO ENGAGEMENT WITH SAID LATCH TO TRIP SAID LINKAGE, SAID TRIP FINGER MEANS BEING AUTOMATICALLY RESETTABLE TO ITS INITIAL POSITION SUBSEQUENT TO THE TRIPPING OF THE LINKAGE TO PERMIT SAID LINKAGE TO AUTOMATICALLY RELATCH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |