Patent US3462340A successfully refreshed from Google Patents.
US2768359A
Expired / Lapsed
US
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Variable inductor
Assignee: Honeywell Inc
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Filing: 1951-12-22
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Granted: 1956-10-23
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Expires: 1971-12-22
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Side
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:09
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/02; H01F29/00; H01F29/14; H01F29/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2148718A
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US2330526A
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US2342628A
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US2442560A
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US2430757A
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US2469137A
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US2598232A
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US2494579A
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US2493669A
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US2658173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |