Patent US2673922A successfully refreshed from Google Patents.
US2673922A
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Partial-turn inductor coil
Assignee: Westinghouse Electric Corp
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Filing: 1951-04-07
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Granted: 1954-03-30
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Expires: 1971-04-07
Abstract
No abstract record available.
Inventors
- 👤 John M Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:39
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR959490A
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US1768159A
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US1924296A
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US2164310A
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US2213241A
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US2282322A
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CH226060A
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US2477029A
Cited
FR951765A
Cited
FR948723A
Cited
US2596770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |