US3167759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air navigation information system
Assignee: International Standard Electric Corp
•
Filing: 1961-05-04
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Granted: 1965-01-26
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Expires: 1981-05-04
Abstract
No abstract record available.
Inventors
- 👤 Villiers Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:26
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/78; G01S13/785; G01S13/787; G01S1/00; G01S1/02; G01S5/00; G01S5/0009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A RADIO NAVIGATION SYSTEM COMPRISING A RADIO BEACON, MEANS TO PRODUCE A DIRECTIVE RADIATION PATTER OVER A GIVEN FOR PRODUCING A ROTARY SWEEP OF SAID PATTERN OVER A GIVEN ARC, MEANS ASSOCIATED WITH SAID ROTARY SWEEP MEANS FOR IMPARTING TO THE ENERGY TRANSMITTED FROM SAID BEACON A PLURALITY OF PREDETERMINED CHARACTERISTIC CONTROL SIGNALS OVER A PREDETERMINED SECTOR OF THE ARC, MEANS FOR ADVANCING SAID PREDETERMINED SECTOR IN DISCRETE STEPS OVER THE GIVEN ARC AND MEANS FOR EFFECTING SUCCESSIVE SWEEPS OF SAID PATTERN OVER SAID GIVEN ARC.
Claim 2
Dependent Claim
86 words
A RADIO NAVIGATION SYSTEM COMPRISING A RADIO BEACON, MEANS TO PRODUCE A DIRECTIVE RADIATION PATTER OVER A GIVEN FOR PRODUCING A ROTARY SWEEP OF SAID PATTERN OVER A GIVEN ARC, MEANS ASSOCIATED WITH SAID ROTARY SWEEP MEANS FOR IMPARTING TO THE ENERGY TRANSMITTED FROM SAID BEACON A PLURALITY OF PREDETERMINED CHARACTERISTIC CONTROL SIGNALS OVER A PREDETERMINED SECTOR OF THE ARC, MEANS FOR ADVANCING SAID PREDETERMINED SECTOR IN DISCRETE STEPS OVER THE GIVEN ARC AND MEANS FOR EFFECTING SUCCESSIVE SWEEPS OF SAID PATTERN OVER SAID GIVEN ARC.
References Cited (Backward Citations)
US2666198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |