Patent US3210762A successfully refreshed from Google Patents.
US3210762A
Expired / Lapsed
US
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Method and system for locating radiant energy sources
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1961-11-09
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Granted: 1965-10-05
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Expires: 1981-11-09
Abstract
No abstract record available.
Inventors
- 👤 John M Brabant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:07
CPC Classifications
G; G01; G01S; G01S11/00; G01S11/02; G01S13/00; G01S13/02; G01S13/06; G01S13/46; G01S3/00; G01S3/02; G01S3/14; G01S5/00; G01S5/02; G01S5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN A METHOD OF DETERMINING THE ELEVATION ANGLE OF A RADIATING TARGET CRAFT WITH RESPECT TO A RECEIVER, THE STEPS OF: DETECTING A FIRST COMPONENT OF VERTICALLY POLARIZED ENERGY RADIATED FROM SAID TARGET CRAFT WHICH HAS BEEN REFLECTED OFF A HORIZONTAL REFLECTIVE SURFACE AT A GRAZING ANGLE; DETECTING A SECOND COMPONENT OF VERTICALLY POLARIZED ENERGY RADIATED DIRECTLY FROM SAID TARGET CRAFT; MEASURING THE RATIO OF THE MAGNITUDES OF SAID FIRST AND SECOND COMPONENTS OF SAID VERTICALLY POLARIZED ENERGY; AND DETERMINING FROM SAID RATIO THE MAGNITUDE OF SAID GRAZING ANGLE.
Claim 2
Dependent Claim
89 words
IN A METHOD OF DETERMINING THE ELEVATION ANGLE OF A RADIATING TARGET CRAFT WITH RESPECT TO A RECEIVER, THE STEPS OF: DETECTING A FIRST COMPONENT OF VERTICALLY POLARIZED ENERGY RADIATED FROM SAID TARGET CRAFT WHICH HAS BEEN REFLECTED OFF A HORIZONTAL REFLECTIVE SURFACE AT A GRAZING ANGLE; DETECTING A SECOND COMPONENT OF VERTICALLY POLARIZED ENERGY RADIATED DIRECTLY FROM SAID TARGET CRAFT; MEASURING THE RATIO OF THE MAGNITUDES OF SAID FIRST AND SECOND COMPONENTS OF SAID VERTICALLY POLARIZED ENERGY; AND DETERMINING FROM SAID RATIO THE MAGNITUDE OF SAID GRAZING ANGLE.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |