Honeywell Information Systems Italia

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4862354 Multiprocessor system with interrupt notification and verification unitExpiredMay 05, 86Aug 29, 89[F06F]
4743982 Digital data separatorExpiredSep 23, 86May 10, 88[G11B]
4744020 Switching mode power supplyExpiredMay 07, 87May 10, 88[H02M]
4742403 Digital data separatorExpiredSep 23, 86May 03, 88[G11B]
4714968 Digital apparatus for data recovery systemExpiredMar 03, 86Dec 22, 87[G11B]
4694394 Microprocessor system having a multiplexed address/data bus which communicates with a plurality of memory and input/output devices including TTL output gatesExpiredOct 10, 85Sep 15, 87[G06F]
4672482 Digital apparatus for magnetic media data recovery systemExpiredOct 09, 84Jun 09, 87[G11B]
4664541 Microprogrammed control apparatus for dot matrix serial printersExpiredJun 25, 84May 12, 87[B41J]
4665483 Data processing system architectureExpiredOct 10, 84May 12, 87[G06F]
4662764 Ruby and needle guiding group for needle printing headExpiredSep 18, 85May 05, 87[B41J]
4661925 Computer control memory apparatus providing variable microinstruction lengthExpiredNov 09, 83Apr 28, 87[G06F]
4660136 Single regulation power supply with load compensation of an auxiliary voltage outputExpiredJan 21, 86Apr 21, 87[H02M, G05F]
4650355 Multicolor inked ribbon cartridge and related positioning mechanism for an impact serial printerExpiredApr 16, 85Mar 17, 87[B41J]
4648730 Armature group for mosaic printing head and related manufacturing methodExpiredMar 18, 86Mar 10, 87[B41J]
4646217 Multiple outputs switching power supplyExpiredSep 13, 85Feb 24, 87[H02M]
4646304 Single error correction circuit for system memoryExpiredMay 10, 85Feb 24, 87[G06F]
4635811 Computer modular frame with retractable stabilizersExpiredSep 18, 85Jan 13, 87[B65D]
4634903 Power FET driving circuitExpiredJan 31, 85Jan 06, 87[H03K]
4631667 Asynchronous bus multiprocessor systemExpiredJun 27, 83Dec 23, 86[G06F]
4630041 Enhanced reliability interrupt control apparatusExpiredJan 09, 84Dec 16, 86[H04Q, G06F]

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