Patent US2647186A successfully refreshed from Google Patents.
US2647186A
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US
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Circuit breaker
Assignee: Federal Electric Products Co
•
Filing: 1949-11-15
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Granted: 1953-07-28
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Expires: 1969-11-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:36
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/50; H01H71/52; H01H71/529; H01H71/12; H01H71/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1662970A
Cited
US2008068A
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US2157787A
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US2209352A
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US2209319A
Cited
US2363606A
Cited
US2459427A
Cited
US2419072A
Cited
US2450268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |