Dentsply Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4,932,398 Anaesthetic vaporizer interlock system and connector for anaesthetic apparatusExpiredDec 23, 88Jun 12, 90[A61M]
4,861,808 Glass/poly (carboxylic acid) cement compositionsExpiredJul 07, 88Aug 29, 89[C08K, A61K]
4,814,362 Glasses and poly(carboxylic acid) cement compositions containing themExpiredApr 06, 87Mar 21, 89[A61K, C08K]
4,797,431 Glass/poly(carboxylic acid) cement compositionsExpiredApr 06, 87Jan 10, 89[A61K]
4,659,714 Anesthetic methods for mammalsExpiredMar 27, 84Apr 21, 87[A61K]
4,514,342 Polyethylenically unsaturated monophosphatesExpiredFeb 07, 83Apr 30, 85[C07F, A01K]

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