Patent US3293571A successfully refreshed from Google Patents.
US3293571A
Expired / Lapsed
US
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Variable reactance solid state frequency modulation system
Assignee: RCA Corp
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Filing: 1963-12-06
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Granted: 1966-12-20
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Expires: 1983-12-06
Abstract
No abstract record available.
Inventors
- 👤 Bott Adolf Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:40
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/10; H03C3/12; H03C3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
RADIO FREQUENCY OSCILLATOR COMPRISING: AN ELECTRONIC DEVICE HAVING AN INPUT ELECTRODE, AN OUTPUT ELECTRODE AND A COMMON ELECTRODE, CIRCUIT MEANS INCLUDING A RESONANT FREQUENCY DETERMINING CIRCUIT COUPLING SAID OUTPUT ELECTRODE TO SAID INPUT ELECTRODE TO SUSTAIN OSCILLATIONS, A CAPACITIVE VOLTAGE DIVIDER COUPLED BETWEEN SAID OUTPUT ELECTRODE AND SAID INPUT ELECTRODE, A CONNECTION FROM A POINT INTERMEDIATE THE ENDS OF SAID VOLTAGE DIVIDER TO SAID COMMON ELECTRODE, MEANS INCLUDING A VARIABLE REACTANCE SOLID STATE ELECTRONIC DEVICE AND HAVING ELECTRIC CURRENT RECTIFYING PROPERTIES COUPLED BETWEEN SAID FREQUENCY DETERMINING CIRCUIT AND SAID COMMON ELECTRODE TO EFFECT FREQUENCY MODULATION OF SAID OSCILLATOR, A SOURCE OF MODULATING SIGNALS, MEANS COUPLING SAID SOURCE TO SAID VARIABLE REACTANCE DEVICE, AND
Claim 2
Dependent Claim
113 words
RADIO FREQUENCY OSCILLATOR COMPRISING: AN ELECTRONIC DEVICE HAVING AN INPUT ELECTRODE, AN OUTPUT ELECTRODE AND A COMMON ELECTRODE, CIRCUIT MEANS INCLUDING A RESONANT FREQUENCY DETERMINING CIRCUIT COUPLING SAID OUTPUT ELECTRODE TO SAID INPUT ELECTRODE TO SUSTAIN OSCILLATIONS, A CAPACITIVE VOLTAGE DIVIDER COUPLED BETWEEN SAID OUTPUT ELECTRODE AND SAID INPUT ELECTRODE, A CONNECTION FROM A POINT INTERMEDIATE THE ENDS OF SAID VOLTAGE DIVIDER TO SAID COMMON ELECTRODE, MEANS INCLUDING A VARIABLE REACTANCE SOLID STATE ELECTRONIC DEVICE AND HAVING ELECTRIC CURRENT RECTIFYING PROPERTIES COUPLED BETWEEN SAID FREQUENCY DETERMINING CIRCUIT AND SAID COMMON ELECTRODE TO EFFECT FREQUENCY MODULATION OF SAID OSCILLATOR, A SOURCE OF MODULATING SIGNALS, MEANS COUPLING SAID SOURCE TO SAID VARIABLE REACTANCE DEVICE, AND
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |