Patent US3213241A successfully refreshed from Google Patents.
US3213241A
Expired / Lapsed
US
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Insulating housing type circuit breaker
Assignee: Westinghouse Electric Corp
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Filing: 1960-09-26
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Granted: 1965-10-19
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Expires: 1980-09-26
Abstract
No abstract record available.
Inventors
- 👤 Francis L Gelzheiser
- 👤 Wesley L Baum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:05
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/06; H01H71/10; H01H71/1045
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
A CIRCUIT BREAKER COMPRISING AN INSULATING HOUSING STRUCTURE; A FIRST EXTERNAL TERMINAL SUPPORTED ON SAID INSULATING HOUSING STRUCTURE; A SECOND EXTERNAL TERMINAL SUPPORTED ON SAID INSULATING HOUSING STRUCTURE IN PROXIMITY TO SAID FIRST TERMINAL; A PAIR OF COOPERABLE CONTACTS SUPPORTED WITHIN SAID HOUSING STRUCTURE; CONDUCTING MEANS CONNECTING SAID FIRST TERMINAL, SAID CONTACTS AND SAID SECOND TERMINAL IN ELECTRICAL SERIES TO ENABLE CONTROL OF AN ELECTRIC CIRCUIT WHEN SAID FIRST AND SECOND TERMINALS ARE CONNECTED IN SAID CIRCUIT; SAID CONDUCTING MEANS BEING EXTERNAL OF SAID HOUSING STRUCTURE ONLY WHERE SAID CONDUCTING MEANS IS CONNECTED TO SAID FIRST AND SECOND TERMINALS; AND TRIP MEANS SUPPORTED WITHIN SAID HOUSING STRUCTURE AND OPERABLE AUTOMATICALLY UPON THE OCCURRENCE OF CERTAIN OVERLOAD CURRENT CONDITIONS TO EFFECT OPENING OF SAID CONTACTS.
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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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |