Mitutoyo Mfg. Co., Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5191717 Coordinate measuring instrumentExpiredSep 08, 87Mar 09, 93[G01B]
4912322 Optical type displacement detecting deviceExpiredAug 07, 87Mar 27, 90[G01B, G01D]
4879552 Variable capacitance type encoderExpiredApr 20, 88Nov 07, 89[G01B, G01D]
4843387 Variable capacitance type encoderExpiredApr 20, 88Jun 27, 89[G01B, G01D]
4840488 Photoelectric type displacement detecting instrumentExpiredJul 24, 87Jun 20, 89[G01D]
D300009 Dial gaugeExpiredMay 07, 86Feb 28, 89[]
4799170 Method of measuring by coordinate measuring instrumentExpiredMar 18, 86Jan 17, 89[G06F, G01B]
4788546 Electrostatic capacity type encoderExpiredOct 09, 87Nov 29, 88[G01R]
4778271 Photoeletric type measuring method and deviceExpiredMar 13, 87Oct 18, 88[G01B]
4772147 Printer apparatusExpiredNov 04, 86Sep 20, 88[B41J]
4763286 Measured data pass-fail discriminating apparatusExpiredMar 08, 85Aug 09, 88[G08B]
4748861 Electronic display measuring deviceExpiredNov 21, 86Jun 07, 88[G01D]
4743770 Profile-measuring light probe using a change in reflection factor in the proximity of a critical angle of lightExpiredSep 22, 86May 10, 88[G01B]
4743838 Capacitance displacement measuring instrument having wave shaped subelectrodes and multiplexerExpiredOct 26, 84May 10, 88[G08C, G01R]
4736313 Digital indication type length measuring systemExpiredFeb 19, 85Apr 05, 88[G06F, G01B]
4733235 Capacitance type displacement measuring instrumentExpiredOct 26, 84Mar 22, 88[G08C]
4730247 Digital indication type measuring apparatus and measured data storage apparatus thereforExpiredSep 04, 84Mar 08, 88[G01B]
4727653 Coordinate measuring instrumentExpiredSep 19, 86Mar 01, 88[G01B]
4725720 Microscope with auto focus and light adjusting meansExpiredMay 27, 86Feb 16, 88[G01J]
4717824 Photoelectric displacement detecting apparatusExpiredJul 25, 85Jan 05, 88[H01J]

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