Lockheed Electronics Company, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4855932 Three-dimensional electro-optical trackerExpiredJul 08, 87Aug 08, 89[G01S]
4836681 Fringe pattern phase detection systemExpiredMay 27, 86Jun 06, 89[H01J, G02B, G01B]
4641137 Radar apparatus for determining range to an agitated reflective targetExpiredNov 06, 75Feb 03, 87[G01S]
4641138 Radar apparatus for detecting an agitated reflective targetExpiredNov 06, 75Feb 03, 87[G01S]
4604582 Digital phase correlatorExpiredJan 04, 85Aug 05, 86[H03L, G01R, H04J]
4550859 Microprocessor controlled fluid dispensing systemExpiredJan 29, 79Nov 05, 85[B67D]
4525713 Electronic tag identification systemExpiredMar 01, 83Jun 25, 85[H04Q, G06K]
4522351 Motor differential drive reel tensioning systemExpiredSep 30, 83Jun 11, 85[B65H]
4502142 Apparatus for detecting errors in a digital data stream encoded in a double density codeExpiredSep 07, 82Feb 26, 85[H03K]
4497060 Self-clocking binary receiverExpiredDec 08, 82Jan 29, 85[H04L]
4490718 Radar apparatus for detecting and/or classifying an agitated reflective targetExpiredNov 06, 75Dec 25, 84[G01S]
4484193 Radar apparatus for detecting and/or classifying an agitated reflective target when relative translation obtainsExpiredNov 06, 75Nov 20, 84[G01S]
4446409 Electronic controller apparatusExpiredMar 22, 82May 01, 84[G05D]
4438891 Tape transport systemExpiredMay 26, 81Mar 27, 84[B65H, G11B]
4320287 Target vehicle tracking apparatusExpiredJan 25, 80Mar 16, 82[G05B, G06F]
4319128 Microprocessor controlled dispensing metering apparatusExpiredFeb 05, 80Mar 09, 82[G06C, G06F, B67D]
4295081 Load actuating servomechanism with resonance equalizationExpiredJan 06, 78Oct 13, 81[H02P]
4292676 Refresh cycle minimizer in a dynamic semiconductor memoryExpiredNov 15, 78Sep 29, 81[G11C]
4284942 Load driving apparatusExpiredJun 16, 78Aug 18, 81[G05B]
4249093 Multiple request arbitration circuitExpiredSep 06, 78Feb 03, 81[H03K]

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