US3251963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repeating circuit interrupter
Assignee: McGraw Edison Co
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Filing: 1963-06-12
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Granted: 1966-05-17
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Expires: 1983-06-12
Abstract
No abstract record available.
Inventors
- 👤 Date Kazuo Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:03
CPC Classifications
H; H01; H01H; H01H75/00; H01H75/02; H01H75/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A CIRCUIT BREAKER HAVING SWITCH MEANS, OPENING SPRING MEANS COUPLED TO SAID SWITCH MEANS, FIRST LATCH MEANS FOR HOLDING SAID SWITCH MEANS IN CLOSED POSITION, COLLAPSIBLE LINKAGE MEANS COUPLED TO SAID SWITCH MEANS, SECOND LATCH MEANS FOR HOLDING SAID COLLAPSIBLE LINKAGE MEANS IN A RIGID CONDITION TO MAINTAIN SAID OPENING SPRING MEANS CHARGED AND SAID SWITCH MEANS CLOSED, MEANS FOR EFFECTING THE RELEASE OF SAID FIRST LATCH MEANS SO THAT SAID SWITCH MEANS IS OPENED SAID FIRST LATCH MEANS BEING INITIALLY OPERABLE TO HOLD SAID COLLAPSIBLE LINKAGE MEANS RIGID AS SAID SWITCH MEANS OPENS, MEANS FOR EFFECTING THE RELEASE OF SAID SECOND LATCH MEANS AFTER SAID SWITCH
Claim 2
Dependent Claim
107 words
A CIRCUIT BREAKER HAVING SWITCH MEANS, OPENING SPRING MEANS COUPLED TO SAID SWITCH MEANS, FIRST LATCH MEANS FOR HOLDING SAID SWITCH MEANS IN CLOSED POSITION, COLLAPSIBLE LINKAGE MEANS COUPLED TO SAID SWITCH MEANS, SECOND LATCH MEANS FOR HOLDING SAID COLLAPSIBLE LINKAGE MEANS IN A RIGID CONDITION TO MAINTAIN SAID OPENING SPRING MEANS CHARGED AND SAID SWITCH MEANS CLOSED, MEANS FOR EFFECTING THE RELEASE OF SAID FIRST LATCH MEANS SO THAT SAID SWITCH MEANS IS OPENED SAID FIRST LATCH MEANS BEING INITIALLY OPERABLE TO HOLD SAID COLLAPSIBLE LINKAGE MEANS RIGID AS SAID SWITCH MEANS OPENS, MEANS FOR EFFECTING THE RELEASE OF SAID SECOND LATCH MEANS AFTER SAID SWITCH
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |