Patent US3379987A successfully refreshed from Google Patents.
US3379987A
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US
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Admittance neutralizer
Assignee: MICRONIA AMPLIFIER CORP
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Filing: 1964-01-29
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Granted: 1968-04-23
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Expires: 1984-01-29
Abstract
No abstract record available.
Inventors
- 👤 Walter K Volkers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:28
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/08; H03F1/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
AN ADMITTANCE NEUTRALIZER CIRCUIT FOR PRESENTING A LOW INPUT ADMITTANCE TO AN INPUT SIGNAL COMPRISING: AMPLIFYING MEANS HAVING A NORMAL RELATIVELY HIGH INPUT IMPEDANCE, SAID AMPLIFYING MEANS ALSO INCLUDING; INPUT MEANS FOR RECEIVING SAID INPUT SIGNAL, OUTPUT MEANS, AND AT LEAST ONE BIASING MEANS, FIRST AND SECOND AMPLIFIER MEANS, MEANS CONNECTING SAID FIRST AND SECOND AMPLIFIER MEANS IN SERIES WITH SAID OUTPUT MEANS SO THAT ONE OF SAID FIRST AND SECOND AMPLIFIER MEANS PRODUCES A LESS THAN UNITY GAIN VERSION OF SAID INPUT SIGNAL AND THE OTHER AMPLIFIER MEANS PRODUCES A GREATER THAN UNITY GAIN VERSION OF SAID INPUT SIGNAL,
References Cited (Backward Citations)
US3100876A
Cited
US3121201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |