Patent US1991083A successfully refreshed from Google Patents.
Patent US4675004A successfully refreshed from Google Patents.
Patent US3387360A successfully refreshed from Google Patents.
US3387360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a semiconductor device
Assignee: Sony Corp
•
Filing: 1965-04-01
•
Granted: 1968-06-11
•
Expires: 1985-04-01
Abstract
No abstract record available.
Inventors
- 👤 Nakamura Keiichi
- 👤 Kuroo Yoshiyasu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:09
CPC Classifications
H; H10; H10W; H10W99/00; H10D; H10D62/00; H10D62/10; H10D62/117; H10W20/00; H10W20/40; H10W72/00; H10W72/071; H10W72/075; H10W72/07551; H10W72/07554; H10W72/50; H10W72/531; H10W72/5363; H10W72/541; H10W72/547; H10W72/551; H10W72/552; H10W72/5524; Y; Y10; Y10S; Y10S438/00; Y10S438/942; Y10S438/944
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |