Patent US3226673A successfully refreshed from Google Patents.
US3226673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for indicating objects rearwardly of a vehicle
Assignee: Liberty Mutual Insurance Co
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Filing: 1962-06-18
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Granted: 1965-12-28
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Expires: 1982-06-18
Abstract
No abstract record available.
Inventors
- 👤 Allen L Cudworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:09
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/93; G01S13/931; G01S15/00; G01S15/02; G01S15/04; G01S2013/9317; G01S2013/9324; G01S2013/9327; G01S2013/93272; G01S2013/93275; Y; Y10; Y10S; Y10S367/00; Y10S367/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
IN A DEVICE FOR USE IN A VEHICLE FOR INDICATING THE DISTANCE BETWEEN THE VEHICLE AND AN OBJECT TOWARDS WHCIH IT IS BACKING, AN INDICATOR INCLUDING A BULB OF THE GAGEOUS DISCHARGE TYPE, A PERMANENT MAGNET SPACED THEREFROM, AND MEANS TO ROTATE SAID BLUB AND SAID MAGNET ABOUT A COMMON AXIS, PULSE GENERATING MEANS INCLUDING A PICKUP COIL IN SAID INDICATOR AND SO DISPOSED REALTIVE TO THE PATH OF SAID MAGNET AS TO GENERATE A PULSE ON EACH PASS OF SAID MAGNET, SAID GENERATING MEANS INCLUDING A SERIES OF SIGNAL EMITTING TRANSDUCERS SUPPORTED TRANSVERSELY AND DISPOSED REARWARDLY OF THE VEHICLE, AND SIGNAL RECEIVING MEANS FOR RECEIVING PULSES REFLECTED FROM AN OBJECT WITHIN A PREDETERMINED RANGE AND INCLUDING SAID BLUB, A SERIES OF REARWARDLY DISPOSED SIGNAL RECEIVING TRANSDUCERS DISPOSED TRANSVERSELY OF THE REAR OF SAID VEHICLE, AND MEANS TO CONVERT THE RECEIVED SIGNALS INTO ELECTRIC BULB-FLASHING PULSES, SAID GENERATING MEANS DELIVERING PULSES DIRECTLY TO SAID RECEIVING MEANS TO ESTABLISH A ZEROREFERENCE FLASHING OF SAID BULB.
Claim 2
Dependent Claim
164 words
IN A DEVICE FOR USE IN A VEHICLE FOR INDICATING THE DISTANCE BETWEEN THE VEHICLE AND AN OBJECT TOWARDS WHCIH IT IS BACKING, AN INDICATOR INCLUDING A BULB OF THE GAGEOUS DISCHARGE TYPE, A PERMANENT MAGNET SPACED THEREFROM, AND MEANS TO ROTATE SAID BLUB AND SAID MAGNET ABOUT A COMMON AXIS, PULSE GENERATING MEANS INCLUDING A PICKUP COIL IN SAID INDICATOR AND SO DISPOSED REALTIVE TO THE PATH OF SAID MAGNET AS TO GENERATE A PULSE ON EACH PASS OF SAID MAGNET, SAID GENERATING MEANS INCLUDING A SERIES OF SIGNAL EMITTING TRANSDUCERS SUPPORTED TRANSVERSELY AND DISPOSED REARWARDLY OF THE VEHICLE, AND SIGNAL RECEIVING MEANS FOR RECEIVING PULSES REFLECTED FROM AN OBJECT WITHIN A PREDETERMINED RANGE AND INCLUDING SAID BLUB, A SERIES OF REARWARDLY DISPOSED SIGNAL RECEIVING TRANSDUCERS DISPOSED TRANSVERSELY OF THE REAR OF SAID VEHICLE, AND MEANS TO CONVERT THE RECEIVED SIGNALS INTO ELECTRIC BULB-FLASHING PULSES, SAID GENERATING MEANS DELIVERING PULSES DIRECTLY TO SAID RECEIVING MEANS TO ESTABLISH A ZEROREFERENCE FLASHING OF SAID BULB.
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |