Patent US3364484A successfully refreshed from Google Patents.
US3364484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low ambiguity radar scanning
Assignee: Lockheed Martin Corp
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Filing: 1963-09-09
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Granted: 1968-01-16
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Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Ethridge C Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:06
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/426
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN ECHO-TYPE RADIO DETECTION IN WHICH REFLECTIONS OF ENERGY RADIATION IN A BEAM ARE DETECTED TO INDICATE THE POSITION OF AN ENERGY-REFLECTING OBJECT, AN IMPROVEMENT FOR ELIMINATING INDICATIONS OF NON-EXISTING OBJECTS, SAID IMPROVEMENT COMPRISING THE STEPS OF TRANSMITTING SUCCESSIVE GROUPS OF RADIATED BEAMS IN DIFFERENT MODES, EACH MODE PRODUCING, FROM EACH OF A PLURALITY OF SPACE LOCATIONS, A REFLECTION THAT RETURNS, FOLLOWING INITIATION OF THE MODE, AT AN INTERVAL DIFFERENT FROM THE RETURN INTERVAL OF AT LEAST ONE OTHER MODE FROM THE SAME SPACE LOCATION, SAID MODES PRODUCING FROM DIFFERENT SPACE LOCATIONS, REFLECTIONS RETURNING AT DIFFERENT SETS OF INTERVALS FOLLOWING INITIATION OF SAID MODES, AND COMBINING WITH REFLECTIONS PRODUCED FROM ONE MODE ONLY THOSE REFLECTIONS PRODUCED FROM ANOTHER MODE WHICH ARE REFLECTED FROM THE SAME SPACE LOCATION.
Claim 2
Dependent Claim
127 words
IN ECHO-TYPE RADIO DETECTION IN WHICH REFLECTIONS OF ENERGY RADIATION IN A BEAM ARE DETECTED TO INDICATE THE POSITION OF AN ENERGY-REFLECTING OBJECT, AN IMPROVEMENT FOR ELIMINATING INDICATIONS OF NON-EXISTING OBJECTS, SAID IMPROVEMENT COMPRISING THE STEPS OF TRANSMITTING SUCCESSIVE GROUPS OF RADIATED BEAMS IN DIFFERENT MODES, EACH MODE PRODUCING, FROM EACH OF A PLURALITY OF SPACE LOCATIONS, A REFLECTION THAT RETURNS, FOLLOWING INITIATION OF THE MODE, AT AN INTERVAL DIFFERENT FROM THE RETURN INTERVAL OF AT LEAST ONE OTHER MODE FROM THE SAME SPACE LOCATION, SAID MODES PRODUCING FROM DIFFERENT SPACE LOCATIONS, REFLECTIONS RETURNING AT DIFFERENT SETS OF INTERVALS FOLLOWING INITIATION OF SAID MODES, AND COMBINING WITH REFLECTIONS PRODUCED FROM ONE MODE ONLY THOSE REFLECTIONS PRODUCED FROM ANOTHER MODE WHICH ARE REFLECTED FROM THE SAME SPACE LOCATION.
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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |