US3299487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making symmetrical switching diode
Assignee: Texas Instruments Inc
•
Filing: 1965-05-27
•
Granted: 1967-01-24
•
Expires: 1985-05-27
Abstract
No abstract record available.
Inventors
- 👤 Donald F Cook
- 👤 David F Cosper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:06
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/722; H03K17/723; H02; H02M; H02M5/00; H02M5/02; H02M5/04; H02M5/22; H02M5/25; H02M5/257; H02M5/2573; H10; H10D; H10D8/00; H10D8/50; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2790940A
Cited
US2900286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |