US2960640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric semiconductor device of the p-n junction type
Assignee: Siemens Schuckertwerke AG
•
Filing: 1957-05-10
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Granted: 1960-11-15
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Expires: 1977-05-10
Abstract
No abstract record available.
Inventors
- 👤 Emeis Reimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:41
CPC Classifications
H; H10; H10P; H10P95/00; H10P95/50; H10D; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2666814A
Cited
US2703855A
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US2842724A
Cited
US2748041A
Cited
US2805347A
Cited
US2815304A
Cited
US2806187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |