Patent US3399405A successfully refreshed from Google Patents.
US3399405A
Expired / Lapsed
US
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Vehicle identifier system
Assignee: PAGE-WILSON Corp A CORP OF
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Filing: 1966-03-29
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Granted: 1968-08-27
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Expires: 1986-03-29
Abstract
No abstract record available.
Inventors
- 👤 Jr James W Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:51
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/02; B61L25/04; B61L25/045; G; G01; G01S; G01S13/00; G01S13/74; G01S13/75; G01S13/751; G01S13/753
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A VEHICLE IDENTIFICATION SYSTEM COMPRISING A TRANSPONDER CARRIED BY THE VEHICLE TO BE IDENTIFIED, SAID TRANSPONDER INCLUDING ONE OR MORE METALLIC RESONANT ELEMENTS EACH OF SAID METALLIC ELEMENTS BEING TUNED TO A DIFFERENT ONE OF A PREDETERMINED SERIES OF RESONANT FREQUENCIES, MEANS TO TRANSMIT A PULSE TO SAID TRANSPONDER TO CAUSE EACH OF SAID METALLIC RESONANT ELEMENTS TO RING AT ITS OWN RESONANT FREQUENCY AND TO RADIATE WAVES AT ITS OWN RESONANT FREQUENCY, AND MEANS TO RECEIVE SAID WAVES AND IDENTIFY THE VEHICLE CARRYING SAID TRANSPONDER BY DETECTING THE PRESENCE OF SAID WAVES AT THE RESONANT FREQUENCIES OF SAID ELEMENTS AND THE ABSENCE OF OTHER WAVES AT FREQUENCIES IN SAID PREDETERMINED SERIES OF RESONANT FREQUENCIES.
Claim 2
Dependent Claim
115 words
A VEHICLE IDENTIFICATION SYSTEM COMPRISING A TRANSPONDER CARRIED BY THE VEHICLE TO BE IDENTIFIED, SAID TRANSPONDER INCLUDING ONE OR MORE METALLIC RESONANT ELEMENTS EACH OF SAID METALLIC ELEMENTS BEING TUNED TO A DIFFERENT ONE OF A PREDETERMINED SERIES OF RESONANT FREQUENCIES, MEANS TO TRANSMIT A PULSE TO SAID TRANSPONDER TO CAUSE EACH OF SAID METALLIC RESONANT ELEMENTS TO RING AT ITS OWN RESONANT FREQUENCY AND TO RADIATE WAVES AT ITS OWN RESONANT FREQUENCY, AND MEANS TO RECEIVE SAID WAVES AND IDENTIFY THE VEHICLE CARRYING SAID TRANSPONDER BY DETECTING THE PRESENCE OF SAID WAVES AT THE RESONANT FREQUENCIES OF SAID ELEMENTS AND THE ABSENCE OF OTHER WAVES AT FREQUENCIES IN SAID PREDETERMINED SERIES OF RESONANT FREQUENCIES.
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) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |