US2658977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical load break switch
Assignee: ELECTRICAL ENG EQUIPMENT CO
•
Filing: 1948-05-08
•
Granted: 1953-11-10
•
Expires: 1968-05-08
Abstract
No abstract record available.
Inventors
- 👤 Peder B Hoye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:25
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1441193A
Cited
US1394087A
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US1470868A
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US1653823A
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US1753975A
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US1861128A
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US1956026A
Cited
US1966894A
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US1971836A
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US1984035A
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US2167665A
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US2387589A
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US2200122A
Cited
US2331441A
Cited
US2199607A
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US2239224A
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US2223975A
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US2323241A
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US2344113A
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US2363606A
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US2337889A
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US2416164A
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US2455998A
Cited
US2462285A
Cited
US2462283A
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US2489426A
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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) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |