US3079567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wideband transistor amplifier
Assignee: US Philips Corp
•
Filing: 1960-05-16
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Granted: 1963-02-26
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Expires: 1980-05-16
Abstract
No abstract record available.
Inventors
- 👤 Poorter Teunis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:47
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/42; H03F1/48; H03F1/56; H03F3/00; H03F3/189; H03F3/19; H04; H04N; H04N5/00; H04N5/14; H04N5/148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A WIDE BAND TRANSISTOR AMPLIFIER COMPRISING FIRST AND SECOND TRANSISTORS, A SOURCE OF SIGNALS, MEANS APPLYING SAID SIGNALS TO THE BASE OF SAID FIRST TRANSISTOR, A SOURCE OF OPERATING POTENTIAL, A SERIES CIRCUIT COMPRISING AN INDUCTANCE, A RESISTOR, AND A CAPACITOR SERIALLY CONNECTED IN THAT ORDER BETWEEN SAID SOURCE OF OPERATING POTENTIAL AND THE BASE OF SAID SECOND TRANSISTOR, SAID RESISTOR HAVING A VARIABLE TAP, AND MEANS CONNECTING THE COLLECTOR OF SAID FIRST TRANSISTOR TO SAID VARIABLE TAP.
Claim 2
Dependent Claim
78 words
A WIDE BAND TRANSISTOR AMPLIFIER COMPRISING FIRST AND SECOND TRANSISTORS, A SOURCE OF SIGNALS, MEANS APPLYING SAID SIGNALS TO THE BASE OF SAID FIRST TRANSISTOR, A SOURCE OF OPERATING POTENTIAL, A SERIES CIRCUIT COMPRISING AN INDUCTANCE, A RESISTOR, AND A CAPACITOR SERIALLY CONNECTED IN THAT ORDER BETWEEN SAID SOURCE OF OPERATING POTENTIAL AND THE BASE OF SAID SECOND TRANSISTOR, SAID RESISTOR HAVING A VARIABLE TAP, AND MEANS CONNECTING THE COLLECTOR OF SAID FIRST TRANSISTOR TO SAID VARIABLE TAP.
References Cited (Backward Citations)
US2058883A
Cited
US2155467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |