US3353091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifier using paragoned active elements
Assignee: North American Aviation Corp
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Filing: 1964-08-24
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Granted: 1967-11-14
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Expires: 1984-08-24
Abstract
No abstract record available.
Inventors
- 👤 Raymond T Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:58
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/45; H03F3/45071; H03F3/45479
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A CIRCUIT USING ACTIVE ELEMENTS CONNECTED TO A COMMON SOURCE OF CONSTANT CURRENT, A SYSTEM FOR MAINTAINING CONSTANT THE RATIO OF CURRENTS THROUGH SAID ELEMENTS COMPRISING FIRST MEANS FOR DETECTING A CURRENT IN ONE OF SAID ACTIVE ELEMENTS, AND SECOND MEANS COUPLED TO A JUNCTION OF THE ACTIVE ELEMENTS AND THE CONSTANT CURRENT SOURCE FOR CONDUCTING A PROPORTIONATELY GREATER CURRENT OF OPPOSITE POLARITY IN RESPONSE TO DETECTED CURRENT IN SAID ONE OF SAID ACTIVE ELEMENTS, THE PROPORTION BEING SO ADJUSTED AS TO FORCE A CURRENT THROUGH AT LEAST ONE OTHER ELEMENT EQUAL TO THE CURRENT THROUGH SAID ONE OF SAID ACTIVE ELEMENTS.
Claim 2
Dependent Claim
103 words
IN A CIRCUIT USING ACTIVE ELEMENTS CONNECTED TO A COMMON SOURCE OF CONSTANT CURRENT, A SYSTEM FOR MAINTAINING CONSTANT THE RATIO OF CURRENTS THROUGH SAID ELEMENTS COMPRISING FIRST MEANS FOR DETECTING A CURRENT IN ONE OF SAID ACTIVE ELEMENTS, AND SECOND MEANS COUPLED TO A JUNCTION OF THE ACTIVE ELEMENTS AND THE CONSTANT CURRENT SOURCE FOR CONDUCTING A PROPORTIONATELY GREATER CURRENT OF OPPOSITE POLARITY IN RESPONSE TO DETECTED CURRENT IN SAID ONE OF SAID ACTIVE ELEMENTS, THE PROPORTION BEING SO ADJUSTED AS TO FORCE A CURRENT THROUGH AT LEAST ONE OTHER ELEMENT EQUAL TO THE CURRENT THROUGH SAID ONE OF SAID ACTIVE ELEMENTS.
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |