Patent US3391287A successfully refreshed from Google Patents.
US3391287A
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US
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Guard junctions for p-nu junction semiconductor devices
Assignee: Westinghouse Electric Corp
•
Filing: 1965-07-30
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Granted: 1968-07-02
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Expires: 1985-07-30
Abstract
No abstract record available.
Inventors
- 👤 Yu C Kao
- 👤 Elden D Wolley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:08
CPC Classifications
H; H10; H10D; H10D64/00; H10D64/111; H10D18/00; H10D62/00; H10D62/10; H10D62/102; H10D62/103; H10D62/105; H10D62/106; H10D8/00; H10D8/411; H10P; H10P95/00; H10D62/13; H10D62/141; H10D62/142; Y; Y10; Y10S; Y10S148/00; Y10S148/053; Y10S148/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2964648A
Cited
US3035186A
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GB915688A
Cited
GB924121A
Cited
US3113220A
Cited
US3335296A
Cited
BE627566A
Cited
FR1361215A
Cited
US3226612A
Cited
US3271201A
Cited
FR1377910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |