CII-HONEYWELL BULL

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4916507 Polysilicon resistor implanted with rare gasExpiredOct 07, 83Apr 10, 90[H01L]
4849929 Method of recording in a disk memory and disk memory systemExpiredOct 05, 88Jul 18, 89[G06F]
4817035 Method of recording in a disk memory and disk memory systemExpiredMar 15, 85Mar 28, 89[G06F]
4786994 Method of and apparatus for controlling the displacement of a movable system driven by an electric motorExpiredNov 29, 85Nov 22, 88[G11B]
4763215 Device for writing high density data on a magnetic mediumExpiredMar 18, 87Aug 09, 88[G11B]
4755892 Method of and apparatus for displacing a movable system driven by an electric motor along a given trajectoryExpiredNov 29, 85Jul 05, 88[G05B, G11B]
4683553 Method and device for protecting software delivered to a user by a supplierExpiredFeb 05, 86Jul 28, 87[H04L]
4666789 Magneto-optic recording mediumExpiredFeb 26, 85May 19, 87[G11B]
4657416 Non-impact printing apparatusExpiredDec 20, 85Apr 14, 87[B41J]
4646192 Magnetic disc cartridge having improved disc brakeExpiredDec 20, 82Feb 24, 87[G11B, B65D]
4636891 Magnetic disc cartridge with ventilating structureExpiredFeb 01, 83Jan 13, 87[G11B]
4633343 Method of and apparatus for writing data on a recording medium and the medium so producedExpiredDec 31, 84Dec 30, 86[G11B]
4633450 Optical focusing apparatus for the reading of a data medium moving past itExpiredJan 19, 84Dec 30, 86[G11B]
4622615 Magnetic transducer for high density recording or writingExpiredJun 29, 84Nov 11, 86[G11B]
4604664 Magnetic disc cartridge with centering structureExpiredFeb 01, 83Aug 05, 86[G11B]
4571648 Device for loading the main body of a platform containing at least one read/write transducer of a data mediumExpiredFeb 16, 83Feb 18, 86[G11B]
4566105 Coding, detecting or correcting transmission error systemExpiredSep 13, 83Jan 21, 86[G06F]
4549075 Method for certifying the origin of at least one item of information stored in the memory of a first electronic device and transmitted to a second electronic device, and system for carrying out the methodExpiredJun 20, 83Oct 22, 85[G06K]
4544833 Process and apparatus for authenticating or certifying at least one item of information contained in a memory of a removable and portable electronic carrier, such as a cardExpiredApr 20, 83Oct 01, 85[G06F]
4538058 Power supply system of a device designed to cooperate with a removable electronic medium such as a card and device equipped with such a systemExpiredApr 20, 83Aug 27, 85[G06K]

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