Kern & Co.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5000585 Apparatus for bearing a shaftExpiredNov 20, 89Mar 19, 91[F16C, G01C]
4993162 Apparatus for measuring inclinations of a componentExpiredJul 19, 88Feb 19, 91[G01C]
4943149 TelescopeExpiredSep 07, 88Jul 24, 90[G02B]
4872341 Sealing jointExpiredAug 17, 88Oct 10, 89[G01C, G12B, G01D, F16J]
4869105 Instrument casing assemblyExpiredAug 22, 88Sep 26, 89[G01D]
4794251 Apparatus for measuring lengths or anglesExpiredNov 17, 87Dec 27, 88[H01J, G01D]
4537464 Infrared objective system lensExpiredJun 22, 83Aug 27, 85[G02B]

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