Patent US3340429A successfully refreshed from Google Patents.
US3133252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remotely controlled receiver responsive only to fundamental modulation frequency
Assignee: ARF Products Inc
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Filing: 1962-03-28
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Granted: 1964-05-12
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Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Jack H Skolnick
- 👤 Hugh F Denson
- 👤 Barry A Dahlberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:25
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A REMOTE CONTROL RECEIVER COMPRISING A DETECTOR HAVING AN INPUT CIRCUIT ADAPTED TO RECEIVE RADIO FREQUENCY SIGNALS MODULATED AT A CONSTANT RATE AND AN OUTPUT CIRCUIT, A FIRST AMPLIFIER HAVING AN INPUT CIRCUIT COUPLED ELECTRICALLY TO THE OUTPUT CIRCUIT OF THE DETECTOR AND AN OUTPUT CIRCUIT, A SECOND AMPLIFIER HAVING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT, THE OUTPUT CIRCUIT HAVING ELECTRICALLY CONNECTED IN SERIES THEREWITH THE COIL OF A RELAY WHICH ACTUATES IN RESPONSE TO ELECTRICAL CURRENTS IN EXCESS OF A THRESHOLD VALUE, A SERIES CIRCUIT INCLUDING A DIODE, A FIRST TUNED CIRCUIT RESONANT AT THE FUNDAMENTAL MODULATION FREQUENCY, AND A SECOND TUNED CIRCUIT RESONANT AT A FREQUENCY ONE-HALF THAT OF THE FIRST TUNED CIRCUIT CONNECTED IN SERIES WITH THE INPUT CIRCUIT OF THE SECOND AMPLIFIER,
Claim 2
Dependent Claim
127 words
A REMOTE CONTROL RECEIVER COMPRISING A DETECTOR HAVING AN INPUT CIRCUIT ADAPTED TO RECEIVE RADIO FREQUENCY SIGNALS MODULATED AT A CONSTANT RATE AND AN OUTPUT CIRCUIT, A FIRST AMPLIFIER HAVING AN INPUT CIRCUIT COUPLED ELECTRICALLY TO THE OUTPUT CIRCUIT OF THE DETECTOR AND AN OUTPUT CIRCUIT, A SECOND AMPLIFIER HAVING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT, THE OUTPUT CIRCUIT HAVING ELECTRICALLY CONNECTED IN SERIES THEREWITH THE COIL OF A RELAY WHICH ACTUATES IN RESPONSE TO ELECTRICAL CURRENTS IN EXCESS OF A THRESHOLD VALUE, A SERIES CIRCUIT INCLUDING A DIODE, A FIRST TUNED CIRCUIT RESONANT AT THE FUNDAMENTAL MODULATION FREQUENCY, AND A SECOND TUNED CIRCUIT RESONANT AT A FREQUENCY ONE-HALF THAT OF THE FIRST TUNED CIRCUIT CONNECTED IN SERIES WITH THE INPUT CIRCUIT OF THE SECOND AMPLIFIER,
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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |