US3214729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsed ultrasonic detector
Assignee: SPX Technologies Inc
•
Filing: 1961-05-18
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Granted: 1965-10-26
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Expires: 1981-05-18
Abstract
No abstract record available.
Inventors
- 👤 Klaus H Frielinghaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:04
CPC Classifications
G; G01; G01B; G01B17/00; G08; G08G; G08G1/00; G08G1/01; G08G1/015; Y; Y10; Y10S; Y10S367/00; Y10S367/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A VEHICLE DETECTION SYSTEM 3 MEANS FOR TRANSMITTING A BEAM OF REPETITIVE SOUND PULSES ACROSS THE PATH TRAVERSED BY SAID VEHICLE SO AS TO IMPINGE UPON THE SOUND REFLECTING SURFACES THEREOF, RECEIVING MEANS INCLUDING AN ELECTRO-ACOUSTIC TRASNSDUCER SO POSITIONED AND DIRECTED AS TO RECEIVE EACH VEHICLE REFLECTION PULSE, GATING CIRCUIT MEANS FOR DEMARCATING A TIME INTERVAL FOLLOWING THE TRANSMISSION OF EACH SOUND PULSE WITH ENCOMPASSES THE EXPECTED RECEPTION TIME BY SAID TRANSDUCER OF SAID VEHICLE REFLECTION PULSE, MEANS GOVERNED BY SAID RECEIVING MEANS AND BY SAID GATING CIRCUIT MEANS BEING DISTINCTIVELY OPERATED BY THE RECEPTION OF SUCCESSIVE REFLECTION PULSES DURING RESPECTIVE OF SAID TIME INTERVALS, FOR INDICATING THE
Claim 2
Dependent Claim
109 words
IN A VEHICLE DETECTION SYSTEM 3 MEANS FOR TRANSMITTING A BEAM OF REPETITIVE SOUND PULSES ACROSS THE PATH TRAVERSED BY SAID VEHICLE SO AS TO IMPINGE UPON THE SOUND REFLECTING SURFACES THEREOF, RECEIVING MEANS INCLUDING AN ELECTRO-ACOUSTIC TRASNSDUCER SO POSITIONED AND DIRECTED AS TO RECEIVE EACH VEHICLE REFLECTION PULSE, GATING CIRCUIT MEANS FOR DEMARCATING A TIME INTERVAL FOLLOWING THE TRANSMISSION OF EACH SOUND PULSE WITH ENCOMPASSES THE EXPECTED RECEPTION TIME BY SAID TRANSDUCER OF SAID VEHICLE REFLECTION PULSE, MEANS GOVERNED BY SAID RECEIVING MEANS AND BY SAID GATING CIRCUIT MEANS BEING DISTINCTIVELY OPERATED BY THE RECEPTION OF SUCCESSIVE REFLECTION PULSES DURING RESPECTIVE OF SAID TIME INTERVALS, FOR INDICATING THE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |