US3435515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making thyristors having electrically interchangeable anodes and cathodes
Assignee: International Standard Electric Corp
•
Filing: 1965-10-20
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Granted: 1969-04-01
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Zenon Jan Kurpisz
- 👤 Gerald James Connor
- 👤 James Patrick Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:22
CPC Classifications
H; H10; H10D; H10D18/00; H10D10/00; H10D18/80; H10D99/00; H10P; H10P32/00; H10P95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2748041A
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US3083441A
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DE1133039B
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US3209428A
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US3271636A
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US3249831A
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US3320485A
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US3332137A
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US3336661A
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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) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |