US3391023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielecteric isolation process
Assignee: Fairchild Semiconductor Corp
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Filing: 1965-03-29
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Granted: 1968-07-02
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Expires: 1985-03-29
Abstract
No abstract record available.
Inventors
- 👤 Bert L Frescura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:09
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/60; H10P14/63; H10P14/6302; H10P14/6304; H10P14/6306; H10P14/6308; H10P14/6309; H10P14/6322; H10P95/00; H10W; H10W10/00; H10W10/01; H10W10/011; H10W10/019; H10W10/021; H10W10/10; H10W10/20; Y; Y10; Y10S; Y10S148/00; Y10S148/062; Y10S148/085; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24529
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) | 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 |