Patent US3106684A successfully refreshed from Google Patents.
US3106684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifier with interrupted positive feedback
Assignee: Collins Radio Co
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Filing: 1960-07-15
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Granted: 1963-10-08
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Expires: 1980-07-15
Abstract
No abstract record available.
Inventors
- 👤 Luik Hmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:15
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
IN COMBINATION WITH AN AMPLIFYING MEANS HAVING INPUT AND OUTPUT TERMINALS AND AN INPUT SIGNAL SOURCE, POSITIVE FEEDBACK CIRCUIT MEANS CONSTRUCTED TO SUPPLY AT LEAST A PORTION OF THE OUTPUT SIGNAL OF SAID AMPLIFYING MEANS TO THE INPUT OF SAID AMPLIFYING MEANS, SAID POSITIVE FEEDBACK MEANS COMPRISING THE SERIES ARRANGEMENT OF A CIRCUIT INTERRUPTING MEANS AND A SECOND CIRCUIT MEANS HAVING THE CHARACTERISTIC OF A HIGH IMPEDANCE BELOW A GIVEN THRESHOLD POTENTIAL LEVEL AND A LOW IMPEDANCE ABOVE SAID GIVEN THRESHOLD POTENTIAL LEVEL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |