US2462624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulating system
Assignee: General Electric Co
•
Filing: 1945-05-18
•
Granted: 1949-02-22
•
Expires: 1965-05-18
Abstract
No abstract record available.
Inventors
- 👤 George H Fletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:51
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/1438
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1279392A
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US1481919A
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US1957015A
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US1957016A
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US1981738A
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US1958665A
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US1989501A
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US2104381A
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US2267395A
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US2278151A
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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) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |