US3404451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing semiconductor devices
Assignee: Fairchild Semiconductor Corp
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Filing: 1966-06-29
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Granted: 1968-10-08
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Expires: 1986-06-29
Abstract
No abstract record available.
Inventors
- 👤 John J So
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:38
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/43; H10P; H10P32/00; H10P32/10; H10P32/14; H10P32/1404; H10P32/17; H10P32/171; H10P95/00; H10W20/00; H10W20/40; Y; Y10; Y10S; Y10S148/00; Y10S148/017; Y10S148/02; Y10S148/043; Y10S148/102; Y10S148/144; Y10S148/151
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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |