501 Nippon Polyurethane Industry, Co. Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5182314 Flexible polyurethane foams and process for producing sameExpiredSep 27, 90Jan 26, 93[C08J, C08G]
5175195 Process for producing flexible polyurethane foam, and products produced therebyExpiredSep 27, 90Dec 29, 92[C08G]

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