Patent US2644872A successfully refreshed from Google Patents.
US2644872A
Expired / Lapsed
US
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Renewable fuse
Assignee: ECONOMY FUSE AND MANUFACTURING Co
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Filing: 1951-03-22
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Granted: 1953-07-07
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Expires: 1971-03-22
Abstract
No abstract record available.
Inventors
- 👤 Gordon F Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:24
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/05; H01H85/143; H01H85/153
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US981038A
Cited
US1061228A
Cited
US1062240A
Cited
US1180767A
Cited
US1235178A
Cited
US1198508A
Cited
US1862317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |