Patent US3258647A successfully refreshed from Google Patents.
US3258647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus
Assignee: —
•
Filing: —
•
Granted: 1966-06-28
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Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:27
CPC Classifications
H; H01; H01H; H01H61/00; H01H61/002; H02; H02H; H02H3/00; H02H3/02; H02H3/06; H02P; H02P1/00; H02P1/16; H02P1/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROTECTOR FOR AN ELECTRIC CIRCUIT INCLUDING A FIRST SET OF PROTECTOR CONTACTS, FIRST CURRENT RESPONSIVE MEANS FOR OPENING SAID FIRST SET OF CONTACTS, A SECOND SET OF PROTECTOR CONTACTS CONNECTED IN SERIES WITH THE FIRST SET OF CONTACTS, SECOND CURRENT RESPONSIVE MEANS RESPONSIVE TO THE CURRENT FLOWING THROUGH SAID SECOND SET FROM BIASING SAID SECOND SET OF CONTACTS TO CLOSED POSITION, AND THIRD CURRENT RESPONSIVE MEANS CONNECTED IN SHUNT CIRCUIT WITH SAID FIRST SET OF CONTACTS FOR OPENING SAID SECOND SET OF CONTACTS.
Claim 2
Dependent Claim
84 words
A PROTECTOR FOR AN ELECTRIC CIRCUIT INCLUDING A FIRST SET OF PROTECTOR CONTACTS, FIRST CURRENT RESPONSIVE MEANS FOR OPENING SAID FIRST SET OF CONTACTS, A SECOND SET OF PROTECTOR CONTACTS CONNECTED IN SERIES WITH THE FIRST SET OF CONTACTS, SECOND CURRENT RESPONSIVE MEANS RESPONSIVE TO THE CURRENT FLOWING THROUGH SAID SECOND SET FROM BIASING SAID SECOND SET OF CONTACTS TO CLOSED POSITION, AND THIRD CURRENT RESPONSIVE MEANS CONNECTED IN SHUNT CIRCUIT WITH SAID FIRST SET OF CONTACTS FOR OPENING SAID SECOND SET OF CONTACTS.
References Cited (Backward Citations)
US2426906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |