Patent US2946026A successfully refreshed from Google Patents.
US2946026A
Expired / Lapsed
US
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Tuned transformer unit
Assignee: MUTER CO
•
Filing: 1955-05-10
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Granted: 1960-07-19
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Expires: 1975-05-10
Abstract
No abstract record available.
Inventors
- 👤 Karl E Rollefson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:46
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/01; H03H7/0153; H03H7/0161; H03H7/0169; H03H7/0184; H01; H01R; H01R12/00; H01R12/70; H01R12/7076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1769021A
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US1983281A
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US1958508A
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US2111490A
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US2206261A
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US2229989A
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US2403349A
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US2485666A
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US2571845A
Cited
US2618749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |