US3370221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency sensitive current limit
Assignee: General Electric Co
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Filing: 1964-10-13
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Granted: 1968-02-20
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Expires: 1984-10-13
Abstract
No abstract record available.
Inventors
- 👤 David L Plette
- 👤 Sidney T Kyzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:24
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/14; H02P9/36; H02P2101/00; H02P2101/30
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) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |