US3418619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saturable solid state nonrectifying switching device
Assignee: TDK Micronas GmbH
•
Filing: 1966-03-24
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Granted: 1968-12-24
•
Expires: 1986-03-24
Abstract
No abstract record available.
Inventors
- 👤 Paul E Lighty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:53
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/70; H10; H10N; H10N70/00; H10N70/20; H10N70/231; H10N70/801; H10N70/821
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2751477A
Cited
US3124772A
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US3312923A
Cited
US3312924A
Cited
US3312922A
Cited
US3327272A
Cited
US3324531A
Cited
US3359521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |