GEC Avionics Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6016116 Navigation apparatusExpiredSep 30, 87Jan 18, 00[G01S]
5564650 Processor arrangementExpiredJun 18, 85Oct 15, 96[F41G, G01C, G01S]
5291202 Noise radarsExpiredMay 13, 86Mar 01, 94[G01S]
5012252 Methods of recognizing targetsExpiredJun 18, 86Apr 30, 91[G01S]
4951242 Median filters having modules for receiving the current value of an incoming digital signalExpiredSep 05, 89Aug 21, 90[G06F]
4863225 Reflection holograms formed by scanningExpiredMar 19, 87Sep 05, 89[G03H]
4823271 Data processing arrangementsExpiredAug 28, 85Apr 18, 89[G06F]
4801866 Electric circuit testing equipmentExpiredSep 11, 85Jan 31, 89[G01R]
4800277 Infra-red imagerExpiredAug 12, 87Jan 24, 89[G02B]
4792733 Cathode ray tube display arrangementsExpiredFeb 18, 87Dec 20, 88[H01J]
4791478 Position indicating apparatusExpiredOct 03, 85Dec 13, 88[H04N]
4786908 Apparatus incorporating recursive estimatorsExpiredMay 15, 86Nov 22, 88[G01S]
4780091 Two-part electrical connectorExpiredMay 27, 87Oct 25, 88[H01R]
4769633 Head-up displaysExpiredApr 09, 86Sep 06, 88[G02D]
4746082 Aircraft and a system including aircraft borne apparatusExpiredFeb 13, 86May 24, 88[B64C]
4742338 Intruder alarm systemExpiredMay 19, 86May 03, 88[G08B]
4725125 Head-up displaysExpiredAug 01, 86Feb 16, 88[G02B]
4721922 Electric signal amplifiersExpiredMar 31, 86Jan 26, 88[H03F]
4716498 Rack mounted circuit moduleExpiredNov 12, 85Dec 29, 87[H05K]
4707054 Apparatus and method for making a reflection hologramExpiredFeb 26, 86Nov 17, 87[G03H]

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