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US2989676A
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Plural-phase rectifier network for an inductive load and protective means therefor
Assignee: Cutler Hammer Inc
•
Filing: 1958-04-03
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Granted: 1961-06-20
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Expires: 1978-04-03
Abstract
No abstract record available.
Inventors
- 👤 Paul M Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:36
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/046; G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/40; G05F1/42; Y; Y10; Y10S; Y10S388/00; Y10S388/90; Y10S388/903; Y10S388/907; Y10S388/913; Y10S388/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2372964A
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US2720621A
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US2873417A
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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) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |