Ishikawa Tekko Kabushiki Kaisha

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5067841 Ball jointExpiredJan 15, 91Nov 26, 91[F16C]
5044811 Ball jointExpiredJun 06, 90Sep 03, 91[F16C]
5009538 Ball jointExpiredJul 12, 90Apr 23, 91[F16C]
5002719 Method of making a plastic dust boot with ridges which prevent end deformation during blow moldingExpiredDec 14, 89Mar 26, 91[B29C]
4995755 Ball jointExpiredMay 23, 89Feb 26, 91[F16C, F16D]
4959997 Magnetic float for magnetic sensorExpiredJun 08, 89Oct 02, 90[H01H]
4954006 Ball jointExpiredFeb 21, 89Sep 04, 90[F16D]
4904107 Ball joint and its manufacturing methodExpiredJul 15, 88Feb 27, 90[F16C, B21D]
4857188 Iron powder attracting magnetExpiredApr 18, 88Aug 15, 89[F01M, B01D]
4810148 Drain boltExpiredFeb 08, 88Mar 07, 89[F16B, H01F]
4714368 Bush with a spherical sliding surfaceExpiredOct 14, 86Dec 22, 87[F16C]
4430016 Ball jointExpiredJun 03, 81Feb 07, 84[F16D, B25G]

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