Patent US2477946A successfully refreshed from Google Patents.
US2477946A
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US
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Voltage regulator circuits
Assignee: Taylor Winfield Corp
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Filing: 1944-04-13
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Granted: 1949-08-02
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Expires: 1964-04-13
Abstract
No abstract record available.
Inventors
- 👤 Clyde E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:36
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1986627A
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US2020314A
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US2164792A
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US2068351A
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US2239289A
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US2229448A
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US2190514A
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US2250102A
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US2295293A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |