Patent US2975342A successfully refreshed from Google Patents.
US2975342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Narrow base planar junction punch-thru diode
Assignee: Research Corp
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Filing: 1957-08-16
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Granted: 1961-03-14
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Expires: 1977-08-16
Abstract
No abstract record available.
Inventors
- 👤 Robert H Rediker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:58
CPC Classifications
H; H10; H10D; H10D10/00; H10D1/00; H10D1/40; H10D48/00; H10D48/30; H10D48/38; H10D62/00; H10D62/10; H10D99/00; H10P; H10P95/00
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) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |