ATOCHEM, LA DEFENSE

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5272242 Hydrazino/polyhydrosilazanesExpiredAug 15, 89Dec 21, 93[C08G]
5250200 Hydrofluoroalkane fire/flame extinguishing compoundsExpiredJun 10, 91Oct 05, 93[A62D]
5162484 Thermotropic semialiphatic copolyesteramidesExpiredJul 12, 90Nov 10, 92[C08G]
5047488 Suspended emulsion polymerization of vinyl monomersExpiredMar 17, 88Sep 10, 91[C08F]
5006602 Polyvinylidene fluoride compositions and products made therefromExpiredDec 31, 86Apr 09, 91[C08L]
4978435 Free chlorine removal processExpiredAug 24, 88Dec 18, 90[C07C, B01J]
4935459 Synthetic resin compositions comprising flameproofing amounts of nitrogenous/halometallic compoundsExpiredAug 24, 89Jun 19, 90[C08K]
4919458 Device for sealingly mounting tubes which pass through a wallExpiredDec 08, 88Apr 24, 90[F16L]
4766262 Process for separating isomeric dichlorotoluenes by adsorptionExpiredNov 03, 86Aug 23, 88[C07C]

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