US3400326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for automatic reactive power regulation in electric networks
Assignee: EVGENIA ALEXANDROVNA PANKRATOVA
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Filing: 1966-02-18
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Granted: 1968-09-03
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Expires: 1986-02-18
Abstract
No abstract record available.
Inventors
- 👤 Zhukov Leonid Alexeevich
- 👤 Kartashov Ilya Ilich
- 👤 Pankratova Evgeni Alexandrovna
- 👤 Ryzhov Jury Petrovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:27
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/70; H; H02; H02J; H02J3/00; H02J3/18; H02J3/1821; H02J3/1835; H02J3/1864; Y; Y02; Y02E; Y02E40/00; Y02E40/10; Y02E40/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |