US3358235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coded signal alerting device
Assignee: Individual
•
Filing: 1964-12-18
•
Granted: 1967-12-12
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Expires: 1984-12-18
Abstract
No abstract record available.
Inventors
- 👤 Truman W Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:34
CPC Classifications
H; H04; H04L; H04L15/00; H04L15/24; H04L15/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
AN ALERTING DEVICE COMPRISING RECEIVING MEANS INCLUDING A DETECTOR FOR RECEPTION OF AN INTERRUPTED CODE SIGNAL HAVING UNMODULATED AND MODULATED PORTIONS, A RADIO FREQUENCY CHANNEL INCLUDING A MONOSTABLE RELAXATION OSCILLATOR CONNECTED TO RECEIVE UNMODULATED SIGNAL PORTIONS FROM SAID RECEIVING MEANS, AN AUDIO FREQUENCY CHANNEL CONNECTED TO RECEIVE MODULATED SIGNAL PORTIONS FROM SAID DETECTOR OF THE RECEIVING MEANS, AN AUDIO AMPLIFIER, A SWITCHING MEANS, AND MEANS OPERABLY CONNECTING SAID SWITCHING MEANS TO SAID RADIO FREQUENCY AND AUDIO CHANNELS AND SAID AUDIO AMPLIFIER SO AS TO ENERGIZE THE AUDIO AMPLIFIER AND CONNECT THE AUDIO AMPLIFIER TO SAID DETECTOR OF THE RECEIVING MEANS UPON COINCIDENCE OF THE OUTPUT FROM SAID AUDIO CHANNEL WITH A TRIGGER TO SAID RELAXATION OSCILLATOR WHICH DRIVES SAID OSCILLATOR TO ITS QUASI STABLE STATE.
Claim 2
Dependent Claim
125 words
AN ALERTING DEVICE COMPRISING RECEIVING MEANS INCLUDING A DETECTOR FOR RECEPTION OF AN INTERRUPTED CODE SIGNAL HAVING UNMODULATED AND MODULATED PORTIONS, A RADIO FREQUENCY CHANNEL INCLUDING A MONOSTABLE RELAXATION OSCILLATOR CONNECTED TO RECEIVE UNMODULATED SIGNAL PORTIONS FROM SAID RECEIVING MEANS, AN AUDIO FREQUENCY CHANNEL CONNECTED TO RECEIVE MODULATED SIGNAL PORTIONS FROM SAID DETECTOR OF THE RECEIVING MEANS, AN AUDIO AMPLIFIER, A SWITCHING MEANS, AND MEANS OPERABLY CONNECTING SAID SWITCHING MEANS TO SAID RADIO FREQUENCY AND AUDIO CHANNELS AND SAID AUDIO AMPLIFIER SO AS TO ENERGIZE THE AUDIO AMPLIFIER AND CONNECT THE AUDIO AMPLIFIER TO SAID DETECTOR OF THE RECEIVING MEANS UPON COINCIDENCE OF THE OUTPUT FROM SAID AUDIO CHANNEL WITH A TRIGGER TO SAID RELAXATION OSCILLATOR WHICH DRIVES SAID OSCILLATOR TO ITS QUASI STABLE STATE.
References Cited (Backward Citations)
US3122705A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |