US2858402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forced ventilated resistor stack
Assignee: Euclid Electric and Manufacturing Co
•
Filing: 1956-04-27
•
Granted: 1958-10-28
•
Expires: 1976-04-27
Abstract
No abstract record available.
Inventors
- 👤 Griffes Milton Wesley
- 👤 Merchant Charles Wesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:13
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/08; H01C1/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US795803A
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US1501638A
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US1864334A
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DE669330C
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US2277912A
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US2391744A
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US2378056A
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US2491193A
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US2736786A
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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) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |