Patent US3267240A successfully refreshed from Google Patents.
US3267240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protectors for electric circuits
Assignee: McGraw Edison Co
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Filing: 1963-07-22
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Granted: 1966-08-16
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Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 Thomas E L Fitzgerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:14
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/044; H01H85/045; H01H85/0458
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
AN ELECTRIC FUSE WHICH COMPRISES: (A) TERMINALS THAT ARE CONNECTABLE INTO AN ELECTRIC CIRCUIT, (B) A FUSIBLE ELEMENT ELECTRICALLY CONNECTED TO SAID TERMINALS TO CONDUCT CURRENT BETWEEN SAID TERMINALS, (C) SAID FUSIBLE ELEMENT RESPONDING TO OVERLOADS OF PREDETERMINED MAGNITUDE AND DURATION TO FUSE, (D) A MASSIVE SUPPORT OF DIELECTRIC MATERIAL THAT SUPPORTS SAID FUSIBLE ELEMENT AND THAT ABSORBS HEAT FROM SAID FUSIBLE ELEMENT, (E) CONNECTORS CONNECTING SAID FUSIBLE ELEMENT TO SAID TERMINALS, (F) SAID CONNECTORS BEING GENERALLY J-SHAPED, (G) SAID SUPPORT HAVING A GROOVE THEREIN TO ACCOMMODATE THE LONG ARM OF ONE OF SAID CONNECTORS AND TO ACCOMMODATE THE SHORT ARM OF A SECOND OF SAID CONNECTORS, (H) SAID SUPPORT HAVING A SECOND GROOVE THEREIN TO ACCOMMODATE THE LONG ARM OF SAID SECOND CONNECTOR AND TO ACCOMMODATE THE SHORT ARM OF SAID ONE CONNECTOR, (I) SAID SUPPORT HAVING A THIRD GROOVE INTERMEDIATE THE FIRST SAID AND SAID SECOND GROOVES, (J) SAID FUSIBLE ELEMENT SPANNING SAID THIRD GROOVE.
Claim 2
Dependent Claim
157 words
AN ELECTRIC FUSE WHICH COMPRISES: (A) TERMINALS THAT ARE CONNECTABLE INTO AN ELECTRIC CIRCUIT, (B) A FUSIBLE ELEMENT ELECTRICALLY CONNECTED TO SAID TERMINALS TO CONDUCT CURRENT BETWEEN SAID TERMINALS, (C) SAID FUSIBLE ELEMENT RESPONDING TO OVERLOADS OF PREDETERMINED MAGNITUDE AND DURATION TO FUSE, (D) A MASSIVE SUPPORT OF DIELECTRIC MATERIAL THAT SUPPORTS SAID FUSIBLE ELEMENT AND THAT ABSORBS HEAT FROM SAID FUSIBLE ELEMENT, (E) CONNECTORS CONNECTING SAID FUSIBLE ELEMENT TO SAID TERMINALS, (F) SAID CONNECTORS BEING GENERALLY J-SHAPED, (G) SAID SUPPORT HAVING A GROOVE THEREIN TO ACCOMMODATE THE LONG ARM OF ONE OF SAID CONNECTORS AND TO ACCOMMODATE THE SHORT ARM OF A SECOND OF SAID CONNECTORS, (H) SAID SUPPORT HAVING A SECOND GROOVE THEREIN TO ACCOMMODATE THE LONG ARM OF SAID SECOND CONNECTOR AND TO ACCOMMODATE THE SHORT ARM OF SAID ONE CONNECTOR, (I) SAID SUPPORT HAVING A THIRD GROOVE INTERMEDIATE THE FIRST SAID AND SAID SECOND GROOVES, (J) SAID FUSIBLE ELEMENT SPANNING SAID THIRD GROOVE.
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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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |