US3386857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing semiconductor devices such as transistors and diodes and semiconductor devices manufactured by such methods
Assignee: US Philips Corp
•
Filing: 1964-06-09
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Granted: 1968-06-04
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Expires: 1984-06-09
Abstract
No abstract record available.
Inventors
- 👤 Walter Steinmaier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:30
CPC Classifications
H; H10; H10P; H10P95/00; C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/40; C23C16/401; C23C16/402; H10P14/00; H10P14/20; H10P14/24; H10P14/27; H10P14/271; H10P14/29; H10P14/2901; H10P14/2902; H10P14/2905; H10P14/34; H10P14/3402; H10P14/3404; H10P14/3411; H10W; H10W74/00; H10W74/40; H10W74/43; Y; Y10; Y10S; Y10S148/00; Y10S148/026; Y10S148/043; Y10S148/118; Y10S148/122; Y10S438/00; Y10S438/942; Y10S438/943
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3144366A
Cited
US3156591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |