US3555375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency power transistor having crossing input and output leads
Assignee: US Philips Corp
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Filing: 1968-11-29
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Granted: 1971-01-12
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Expires: 1988-11-29
Abstract
Abstract A HIGH FREQUENCY TRANSISTOR IS DESCRIBED HAVING INPUT, OUTPUT AND COMMON LEADS. IN ORDER TO REDUCE THE UNDESIRED FEEDBACK EFFECT OF A STRAY SERIES INDUCTANCE IN THE COMMON LEAD, THE OUTPUT LEADS ARE ARRANGED SO AS TO CROSS ONE ANOTHER IN SUCH CLOSE PROXIMITY AS TO INDUCTIVE- LY COUPLE THEM TOGETHER PROVIDING A FEEDBACK OPPOSITE TO THAT OF THE STRAY INDUCTANCE IN ORDER TO COMPENSATE THE LATTER.
Inventors
- 👤 Antonius Hubertus Hilbers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:30
CPC Classifications
H; H10; H10W; H10W99/00; H05; H05K; H05K1/00; H05K1/02; H05K1/0213; H05K1/0216; H05K1/11; H05K1/115; H05K1/116; H10W44/00; H10W44/20; H10W70/00; H10W70/40; H10W70/481; H10W72/00; H10W72/20; H05K2201/00; H05K2201/07; H05K2201/0776; H05K2201/0792; H05K2201/09; H05K2201/09209; H05K2201/09654; H05K2201/09772; H05K2201/10; H05K2201/10007; H05K2201/10166; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3447; H10W72/50; H10W72/551; H10W72/552; H10W72/5522; H10W72/5524; H10W90/00; H10W90/701; H10W90/751; H10W90/756
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |