US2785265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductor
Assignee: Zenith Electronics LLC
•
Filing: 1952-12-05
•
Granted: 1957-03-12
•
Expires: 1972-12-05
Abstract
No abstract record available.
Inventors
- 👤 Winfield W Salisbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:35
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/36; H05B6/362
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2181899A
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FR997266A
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GB655400A
Cited
US2544845A
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US2604519A
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US2587169A
Cited
GB680140A
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US2676296A
Cited
US2676233A
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US5585634A
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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) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |