Patent US2511230A successfully refreshed from Google Patents.
US2511230A
Expired / Lapsed
US
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High-voltage inductance coil
Assignee: RCA Corp
•
Filing: 1946-12-20
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Granted: 1950-06-13
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Expires: 1966-12-20
Abstract
No abstract record available.
Inventors
- 👤 Wald Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:45
CPC Classifications
H; H01; H01F; H01F17/00; H01F17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US667121A
Cited
US705936A
Cited
GB190809A
Cited
US1809042A
Cited
US1852605A
Cited
GB420226A
Cited
DE664325C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |