Patent US3559085A successfully refreshed from Google Patents.
US3559085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor amplifier for high speed sweep
Assignee: Iwatsu Electric Co Ltd
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Filing: 1968-05-02
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Granted: 1971-01-26
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Expires: 1988-05-02
Abstract
Abstract AN IMPROVED TRANSISTOR PUSH-PULL AMPLIFIER PROVIDED WITH TWO OUTPUT TRANSISTORS OF AN OPPOSITE POLARITY TYPE IN A COMMON-EMITTER CONFIGURATION AND HAVING ALMOST EQUAL AVERAGE DC OUTPUT LEVELS. BY SELECTING THE POLARITY OF THE OUTPUT TRANSISTORS IN ACCORDANCE WITH THE REQUIERED POLARITY OF THE OUTPUT VOLTAGE, AND UTILIZING THE HIGH FREQUENCY AMPLIFYING CHARACTERISTS OF THE OUTPUT TRANSSISTORS WHEN THEY ARE DRIVEN IN THE DIRECTION OF THEIR SATURATION REGION, THE HIGH SPEED SAWTOOTH WAVEFORM OF A CATHODE-RAY TUBE OSCILLOSCOPE SWEEP CIRCUIT PROVIDED WITH THE TRANSISTOR AMPLIFIER OF THE PRESENT INVENTION CAN BE AMPLIFIED WITHOUT DISTORTION.
Inventors
- 👤 Yasumori Ishijima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:43
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |