Patent US2625675A successfully refreshed from Google Patents.
US2625675A
Expired / Lapsed
US
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Voltage regulator
Assignee: Chatham Electronics Corp
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Filing: 1951-03-16
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Granted: 1953-01-13
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Expires: 1971-03-16
Abstract
No abstract record available.
Inventors
- 👤 Frank J Lupo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:53
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)
GB472326A
Cited
US2373208A
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US2389364A
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US2535355A
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US2447321A
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US2519377A
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US2563179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |