US2617907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulator adjustment
Assignee: Reconstruction Finance Corp
•
Filing: 1949-09-08
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Granted: 1952-11-11
•
Expires: 1969-09-08
Abstract
No abstract record available.
Inventors
- 👤 Umbarger James Andrew
- 👤 Glenn E Heveran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:05
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/16; H02J7/22; H02J7/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US300253A
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US1576768A
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US1724197A
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US2238383A
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US2339526A
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US2358482A
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US2428218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |