US2787684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater element fuse
Assignee: ECONOMY FUSE AND MANUFACTURING Co
•
Filing: 1953-09-22
•
Granted: 1957-04-02
•
Expires: 1973-09-22
Abstract
No abstract record available.
Inventors
- 👤 Gordon F Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:19
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/044; H01H85/045; H01H85/0458; H01H85/0039; H01H85/0047; H01H85/0052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2563536A
Cited
US1150426A
Cited
US1511369A
Cited
US2296627A
Cited
US2300620A
Cited
US2303661A
Cited
US2640861A
Cited
US2694134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |