US3369239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air traffic control and monitoring system
Assignee: McDonnell Aircraft Corp
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Filing: 1964-11-19
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Granted: 1968-02-13
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Expires: 1984-11-19
Abstract
No abstract record available.
Inventors
- 👤 Robert E Perkinson
- 👤 Martin J Borrok
- 👤 Fange Wilbur H Von
- 👤 Frank E Christofferson
- 👤 James E Blouin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:05
CPC Classifications
G; G08; G08G; G08G5/00; G08G5/20; G08G5/26; G01; G01S; G01S1/00; G01S1/02; G01S11/00; G01S11/02; G01S11/08; G08G5/50; G08G5/56; G08G5/70; G08G5/72; G08G5/723
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A GROUND STATION FOR MONITORING AIR TRAFFIC AND THE LIKE COMPRISING SIGNAL TRANSMITTING AND RECEIVING MEANS, PRECISION MEANS FOR KEEPING TIME INCLUDING CIRCUIT MEANS OPERATIVELY CONNECTED TO THE TRANSMITTING MEANS FOR ENERGIZING SAID TRANSMITTING MEANS TO TRANSMIT SIGNALS AT PRESELECTED TIMES, MEANS RESPONSIVE TO THE TIME KEEPING MEANS FOR ESTABLISHING REPEATING TIME PERIODS AND MEANS FOR SUBDIVIDING SAID TIME PERIODS INTO INDIVIDUAL TRANSMITTING INTERVALS, MEANS AT THE GROUND STATION FOR ASSIGNING DIFFERENT ONES OF SAID INTERVAL TO DIFFERENT AIRPLANES, SAID RECEIVING MEANS RESPONDING TO SIGNALS RECEIVED FROM AIRPLANES DURING THEIR ASSIGNED TRANSMITTING INTERVALS, DIS-
Claim 2
Dependent Claim
94 words
A GROUND STATION FOR MONITORING AIR TRAFFIC AND THE LIKE COMPRISING SIGNAL TRANSMITTING AND RECEIVING MEANS, PRECISION MEANS FOR KEEPING TIME INCLUDING CIRCUIT MEANS OPERATIVELY CONNECTED TO THE TRANSMITTING MEANS FOR ENERGIZING SAID TRANSMITTING MEANS TO TRANSMIT SIGNALS AT PRESELECTED TIMES, MEANS RESPONSIVE TO THE TIME KEEPING MEANS FOR ESTABLISHING REPEATING TIME PERIODS AND MEANS FOR SUBDIVIDING SAID TIME PERIODS INTO INDIVIDUAL TRANSMITTING INTERVALS, MEANS AT THE GROUND STATION FOR ASSIGNING DIFFERENT ONES OF SAID INTERVAL TO DIFFERENT AIRPLANES, SAID RECEIVING MEANS RESPONDING TO SIGNALS RECEIVED FROM AIRPLANES DURING THEIR ASSIGNED TRANSMITTING INTERVALS, DIS-
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 |