US3148257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric fuses
Assignee: English Electric Co Ltd
•
Filing: 1960-11-18
•
Granted: 1964-09-08
•
Expires: 1980-11-18
Abstract
No abstract record available.
Inventors
- 👤 Feenan John
- 👤 Jacks Eric
- 👤 Betteridge Vernon Brandon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:54
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/05; H01H85/055; H01H85/08; H01H85/10; H01H69/00; H01H69/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A FUSE-ELEMENT COMPRISING A RIBBON OF FUSIBLE METAL, OF UNIFORM WIDTH, AND HAVING A SERIES OF GROOVES OF REDUCED THICKNESS EACH OF WHICH EXTENDS ACROSS THE FULL WIDTH OF THE RIBBON; SAID RIBBON HAVING ALSO, AT ONE END OF SAID SERIES OF GROOVES, A TRANSVERSE TROUGH WHICH EXTENDS ACROSS THE FULL WIDTH OF THE RIBBON, SAID TROUGH BEING FILLED WITH METAL OF LOWER MELTING POINT THAN, AND CAPABLE OF ALLOYING WITH, THE METAL OF THE RIBBON.
Claim 2
Dependent Claim
76 words
A FUSE-ELEMENT COMPRISING A RIBBON OF FUSIBLE METAL, OF UNIFORM WIDTH, AND HAVING A SERIES OF GROOVES OF REDUCED THICKNESS EACH OF WHICH EXTENDS ACROSS THE FULL WIDTH OF THE RIBBON; SAID RIBBON HAVING ALSO, AT ONE END OF SAID SERIES OF GROOVES, A TRANSVERSE TROUGH WHICH EXTENDS ACROSS THE FULL WIDTH OF THE RIBBON, SAID TROUGH BEING FILLED WITH METAL OF LOWER MELTING POINT THAN, AND CAPABLE OF ALLOYING WITH, THE METAL OF THE RIBBON.
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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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |