US3400311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor structure having improved power handling and heat dissipation capabilities
Assignee: Telefunken Electronic GmbH
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Filing: 1967-03-01
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Granted: 1968-09-03
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Expires: 1987-03-01
Abstract
No abstract record available.
Inventors
- 👤 Dahlberg Reinhard
- 👤 Gerstner Dieter
- 👤 Klossika Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:04
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/132; H10W44/00; H10W44/401; H10W90/00; H10W90/701; H10W90/751; H10W90/753; H10W90/754
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2663806A
Cited
US2751545A
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US2816964A
Cited
US3226603A
Cited
US3231794A
Cited
US3264531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |