US3369237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio aid to navigation
Assignee: Cubic Corp
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Filing: 1965-08-25
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Granted: 1968-02-13
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Expires: 1985-08-25
Abstract
No abstract record available.
Inventors
- 👤 Minton B Cronkhite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:04
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A PORTABLE, COMPACT RADIO AID TO NAVIGATION SYSTEM OPERABLE IN CONJUNCTION WITH A REMOTE VHF OMNIRANGE RECEIVER, (VOR) TO PROVIDE AT THE RECEIVER A VISUAL DISPLAY OF DEVIATION FROM A PREDETERMINED VECTOR HEADING FROM THE RECEIVER TOWARD THE SYSTEM, THE SYSTEM COMPRISING: (A) PORTABLE FIRST TRANSMITTING MEANS FOR GENERATING AND TRANSMITTING A FIRST CARRIER SIGNAL IN THE VHF FREQUENCY RANGE AND SECOND TRANSMITTING MEANS FOR GENERATING AND TRANSMITTING A SECOND CARRIER SIGNAL AT A FREQUENCY OFFSET BY 30 CYCLES PER SECOND FROM SAID FIRST CARRIER SIGNAL FREQUENCY AND IN PHASE COHERENCE WITH SAID FIRST CARRIER SIGNAL; (B) FIRST ANTENNA MEANS COUPLED TO SAID FIRST TRANSMITTING MEANS FOR RADIATING SAID FIRST CARRIER SIGNAL IN A PERDETERMINED PATTERN; AND (C) SECOND ANTENNA MEANS COUPLED TO SAID SECOND TRANSMITTING MEANS FOR RADIATING SAID SECOND CARRIER SIGNAL IN A PREDETERMINED PATTERN; SAID FIRST AND SECOND ANTENNA MEANS BEING POSITIONED ALONG A COMMON BASE LINE AND SEPARATED BY A DISTANCE
Claim 2
Dependent Claim
155 words
A PORTABLE, COMPACT RADIO AID TO NAVIGATION SYSTEM OPERABLE IN CONJUNCTION WITH A REMOTE VHF OMNIRANGE RECEIVER, (VOR) TO PROVIDE AT THE RECEIVER A VISUAL DISPLAY OF DEVIATION FROM A PREDETERMINED VECTOR HEADING FROM THE RECEIVER TOWARD THE SYSTEM, THE SYSTEM COMPRISING: (A) PORTABLE FIRST TRANSMITTING MEANS FOR GENERATING AND TRANSMITTING A FIRST CARRIER SIGNAL IN THE VHF FREQUENCY RANGE AND SECOND TRANSMITTING MEANS FOR GENERATING AND TRANSMITTING A SECOND CARRIER SIGNAL AT A FREQUENCY OFFSET BY 30 CYCLES PER SECOND FROM SAID FIRST CARRIER SIGNAL FREQUENCY AND IN PHASE COHERENCE WITH SAID FIRST CARRIER SIGNAL; (B) FIRST ANTENNA MEANS COUPLED TO SAID FIRST TRANSMITTING MEANS FOR RADIATING SAID FIRST CARRIER SIGNAL IN A PERDETERMINED PATTERN; AND (C) SECOND ANTENNA MEANS COUPLED TO SAID SECOND TRANSMITTING MEANS FOR RADIATING SAID SECOND CARRIER SIGNAL IN A PREDETERMINED PATTERN; SAID FIRST AND SECOND ANTENNA MEANS BEING POSITIONED ALONG A COMMON BASE LINE AND SEPARATED BY A DISTANCE
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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |