Patent US3219822A successfully refreshed from Google Patents.
US3219822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared search system
Assignee: Lockheed Martin Corp
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Filing: 1961-09-01
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Granted: 1965-11-23
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Expires: 1981-09-01
Abstract
No abstract record available.
Inventors
- 👤 Edgar W Kutzscher
- 👤 Amara Dominic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:58
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/789; G01S3/783; G01S3/784
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
AN INFRARED SEARCH SYSTEM COMPRISING, RECEIVER HEAD MEANS FOR IMAGING A BEAM FROM AN INFRARED EMISSIVE TARGET, DRIVE MEANS FOR ROTATING SAID HEAD MEANS ABOUT THE AZIMUTH AXIS, SCANNING MOSAIC MEANS LOCATED IN AND FIXED WITH RESPECT TO THE IMAGE PLANE OF SAID BEAM AND RESPONSIVE TO THE IMAGE OF SAID TARGET TO PROVIDE A SUBSTANTIALLY FIXED FREQUENCY OUTPUT SIGNAL, FLUID COOLING MEANS ISOLATED FROM SAID IMAGE PLANE AND ADAPTED TO COOL AND FIXED SCANNING MOSAIC MEANS, AND DEMODULATOR MEANS FOR SCANNING THE MOSAIC MEANS AT THE SAME RATE AS THE ROTATION OF THE RECEIVER HEAD MEANS AND RESPONSIVE TO SAID FREQUENCY OUTPUT SIGNAL TO PROVIDE A DEMODULATED SIGNAL CORRESPONDING TO THE INSTANTANEOUS SPATIAL POSITION OF SAID TARGET.
Claim 2
Dependent Claim
118 words
AN INFRARED SEARCH SYSTEM COMPRISING, RECEIVER HEAD MEANS FOR IMAGING A BEAM FROM AN INFRARED EMISSIVE TARGET, DRIVE MEANS FOR ROTATING SAID HEAD MEANS ABOUT THE AZIMUTH AXIS, SCANNING MOSAIC MEANS LOCATED IN AND FIXED WITH RESPECT TO THE IMAGE PLANE OF SAID BEAM AND RESPONSIVE TO THE IMAGE OF SAID TARGET TO PROVIDE A SUBSTANTIALLY FIXED FREQUENCY OUTPUT SIGNAL, FLUID COOLING MEANS ISOLATED FROM SAID IMAGE PLANE AND ADAPTED TO COOL AND FIXED SCANNING MOSAIC MEANS, AND DEMODULATOR MEANS FOR SCANNING THE MOSAIC MEANS AT THE SAME RATE AS THE ROTATION OF THE RECEIVER HEAD MEANS AND RESPONSIVE TO SAID FREQUENCY OUTPUT SIGNAL TO PROVIDE A DEMODULATED SIGNAL CORRESPONDING TO THE INSTANTANEOUS SPATIAL POSITION OF SAID TARGET.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |