Patent US2560217A successfully refreshed from Google Patents.
US2560217A
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US
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Grounded phase selector
Assignee: General Electric Co
•
Filing: 1948-04-29
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Granted: 1951-07-10
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Expires: 1968-04-29
Abstract
No abstract record available.
Inventors
- 👤 Clyde G Dewey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:02
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/26; H02H3/32; H02H3/34; H02H3/353
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1535589A
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US1731372A
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DE479788C
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FR752537A
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US2161829A
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US2320861A
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US2381282A
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US2365025A
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US2403414A
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US2445429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |