KONICA IMAGING U.S.A., INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5204231 White safelight handleable photographic film containing a filter dye layerExpiredMar 31, 92Apr 20, 93[G03C]
4976979 Process for the decaffeination of teaExpiredMar 20, 89Dec 11, 90[A23F]
4935463 Surface composition for a substrate and method of preparationExpiredJun 15, 87Jun 19, 90[C09D, C08K]

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