Patent US3417219A successfully refreshed from Google Patents.
US3417219A
Expired / Lapsed
US
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Rotating transformer structure
Assignee: FYCON INDUSTRIES A CORP OF FLA
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Filing: 1966-03-15
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Granted: 1968-12-17
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Expires: 1986-03-15
Abstract
No abstract record available.
Inventors
- 👤 Francis M Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:43
CPC Classifications
G; G01; G01K; G01K13/00; G01K13/04; G01K13/08; D; D02; D02J; D02J13/00; D02J13/005; H; H05; H05B; H05B3/00; H05B3/0095; H05B6/00; H05B6/02; H05B6/10; H05B6/14; H05B6/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |