US3205482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency signal radio receiver responsive to cessation of all but the emergency frequency
Assignee: Individual
•
Filing: 1961-06-27
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Granted: 1965-09-07
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Expires: 1981-06-27
Abstract
No abstract record available.
Inventors
- 👤 Jr James B Taylor
- 👤 Richard A Kelting
- 👤 Sodergreen William Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:19
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/22; H04B1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
ALERT SIGNAL APPARATUS COMPRISING: RECEIVING MEANS BROADLY TUNED TO RESPOND SIMULTANEOUSLY TO SIGNALS ON A PLURALITY OF WAVELENGTHS IN A PRESELECTED BAND, SAID RECEVIING MEANS INCLUDING MEANS FOR REJECTING SIGNALS OF A PRESELECTED WAVELENGTH IN SAID PRESELECTED BAND; AND SIGNALING MEANS RESPONSIVE TO THE OUTPUT OF SAID RECEIVING MEANS PROVIDING A SIGNAL WHEN THE OUTPUT OF SAID RECEIVING MEANS DROPS DUE TO THE CESSATION OF SAID SIGNALS ON SA PLURALITY OF WAVELENGTHS IN SAID PRESELECTED BAND OTHER THAN SAID SIGNALS OF PRESELECTED WAVELENGTH.
Claim 2
Dependent Claim
83 words
ALERT SIGNAL APPARATUS COMPRISING: RECEIVING MEANS BROADLY TUNED TO RESPOND SIMULTANEOUSLY TO SIGNALS ON A PLURALITY OF WAVELENGTHS IN A PRESELECTED BAND, SAID RECEVIING MEANS INCLUDING MEANS FOR REJECTING SIGNALS OF A PRESELECTED WAVELENGTH IN SAID PRESELECTED BAND; AND SIGNALING MEANS RESPONSIVE TO THE OUTPUT OF SAID RECEIVING MEANS PROVIDING A SIGNAL WHEN THE OUTPUT OF SAID RECEIVING MEANS DROPS DUE TO THE CESSATION OF SAID SIGNALS ON SA PLURALITY OF WAVELENGTHS IN SAID PRESELECTED BAND OTHER THAN SAID SIGNALS OF PRESELECTED WAVELENGTH.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |