US3486088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerative gate thyristor construction
Assignee: National Electronics Inc
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Filing: 1968-05-22
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Granted: 1969-12-23
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Expires: 1988-05-22
Abstract
No abstract record available.
Inventors
- 👤 Donald I Gray
- 👤 John H Hutchings
- 👤 Andrew M Wohlert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:10
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D62/117; H10D62/13; H10D62/141; H10D62/148
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) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |