Patent US2558763A successfully refreshed from Google Patents.
US3054033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Junction type semiconductor device
Assignee: Sony Corp
•
Filing: 1960-01-18
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Granted: 1962-09-11
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Expires: 1980-01-18
Abstract
No abstract record available.
Inventors
- 👤 Iwama Kazuo
- 👤 Ezaki Reona
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:21
CPC Classifications
H; H10; H10D; H10D8/00; H10D8/70; H10D1/00; H10D1/40; H10D62/00; H10D62/60; H10D99/00; H10F; H10F99/00
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |