US3114147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft collision warning system
Assignee: Avco Corp
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Filing: 1959-08-04
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Granted: 1963-12-10
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Expires: 1979-08-04
Abstract
No abstract record available.
Inventors
- 👤 John A Kuecken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:04
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/93; G01S13/933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN COMBINATION, A COLLISION WARNING SYSTEM COMPRISING: A SOURCE OF CARRIER FREQUENCY ENERGY; A SOURCE OF SINUSOIDAL SIGNAL; A MODULATOR FOR FREQUENCY-MODULATING SAID ENERGY WITH SAID SIGNAL; MEANS FOR RADIATING SAID FREQUENCYMODULATED ENERGY TOWARD A MOVING TARGET; MEANS FOR RECEIVING REFLECTIONS OF SAID ENERGY FROM SAID MOVING TARGET; MEANS FOR COMPARING THE MEDIAN FREQUENCY OF SAID RADIATED ENERGY WITH SAID REFLECTED ENERGY, AND FOR DERIVING A VOLTAGE PROPORTIONAL TO THE DIFFERENCE BETWEEN THE MEDIAN FREQUENCY OF SAID RADIATED ENERGY AND THE FREQUENCY OF SAID REFLECTED ENERGY; MEANS FOR COMPARING THE PHASE OF SAID SIGNAL WITH THE PHASE OF THE MODULATION SIGNAL OF SAID REFLECTED ENERGY, AND FOR DERIVING A VOLTAGE PRO-
Claim 2
Dependent Claim
111 words
IN COMBINATION, A COLLISION WARNING SYSTEM COMPRISING: A SOURCE OF CARRIER FREQUENCY ENERGY; A SOURCE OF SINUSOIDAL SIGNAL; A MODULATOR FOR FREQUENCY-MODULATING SAID ENERGY WITH SAID SIGNAL; MEANS FOR RADIATING SAID FREQUENCYMODULATED ENERGY TOWARD A MOVING TARGET; MEANS FOR RECEIVING REFLECTIONS OF SAID ENERGY FROM SAID MOVING TARGET; MEANS FOR COMPARING THE MEDIAN FREQUENCY OF SAID RADIATED ENERGY WITH SAID REFLECTED ENERGY, AND FOR DERIVING A VOLTAGE PROPORTIONAL TO THE DIFFERENCE BETWEEN THE MEDIAN FREQUENCY OF SAID RADIATED ENERGY AND THE FREQUENCY OF SAID REFLECTED ENERGY; MEANS FOR COMPARING THE PHASE OF SAID SIGNAL WITH THE PHASE OF THE MODULATION SIGNAL OF SAID REFLECTED ENERGY, AND FOR DERIVING A VOLTAGE PRO-
References Cited (Backward Citations)
US2875434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |