US2776413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core for choke coil or resistor
Assignee: Quality Components Inc
•
Filing: 1951-05-04
•
Granted: 1957-01-01
•
Expires: 1971-05-04
Abstract
No abstract record available.
Inventors
- 👤 Edgar J Knouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:23
CPC Classifications
H; H01; H01F; H01F17/00; H01F17/04; H01F17/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1828577A
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US2008288A
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US2141890A
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US2245373A
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US2355611A
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US2427872A
Cited
US2431425A
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US2537061A
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US2540863A
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US2653992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |