MITSUI PETROCHEMICAL

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5128446 Process for producing cycloolefin random copolymerExpiredSep 06, 89Jul 07, 92[C08F]
5043393 Process for producing fluorine-containing copolymer and fluorine-containing copolymer compositionExpiredDec 01, 89Aug 27, 91[C08F]
4874808 Cycloolefin type random copolymer compositions and uses thereofExpiredApr 29, 88Oct 17, 89[C08L, C08K]
4834819 Process for producing information recording discsExpiredAug 11, 88May 30, 89[B29C]

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