Patent US2479914A successfully refreshed from Google Patents.
US2479914A
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Resistance heater unit for thermal overload devices and method of making the same
Assignee: Cutler Hammer Inc
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Filing: 1945-10-17
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Granted: 1949-08-23
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Expires: 1965-10-17
Abstract
No abstract record available.
Inventors
- 👤 Lester D Drugmand
- 👤 Edwin W Seeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:09
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/14; H01H71/20; H01H71/205; H01H71/16; H01H71/164; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US686245A
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US1086726A
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US1105070A
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US1669642A
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US1927894A
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US2022657A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |