Georgia Kaolin Company, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5168083 High opacity defined kaolin product and method of producing sameExpiredMay 09, 90Dec 01, 92[C04B]
5085707 Defined and delaminated kaolin productExpiredJun 14, 90Feb 04, 92[C04B]
5036599 Method of concentrating slurried kaolinExpiredDec 27, 88Aug 06, 91[F26B]
4948362 Energy conserving process for calcining clayExpiredNov 14, 88Aug 14, 90[F27B, F27D]
4943324 High performance paper filler and method of producing sameExpiredMay 23, 88Jul 24, 90[C09C]
4888315 High solids blended kaolin clay slurryExpiredJun 04, 86Dec 19, 89[C04B]
4650521 Processing of kaolinitic clays at high solids under acidic conditionsExpiredMay 16, 85Mar 17, 87[C04B]
4642904 Energy conserving process for drying a clay slurryExpiredAug 01, 85Feb 17, 87[F26B]
4618374 High solids processing of kaolinitic clays with post-leaching oxidationExpiredMar 29, 85Oct 21, 86[C04B]
4451440 Utilization of ion exchange resin in the processing of kaolinsExpiredOct 28, 82May 29, 84[C01G]
4374203 Stable clay slurriesExpiredMar 10, 82Feb 15, 83[C09C]
4346178 Structured kaolin agglomerates and methods of making the sameExpiredJul 27, 81Aug 24, 82[C09C]
4299807 Methods of producing kaolin pigmentsExpiredJun 03, 80Nov 10, 81[C01B, C04B]
4240951 Rheological control of polyester-styrene resin compositionsExpiredDec 23, 75Dec 23, 80[C08K]
4227920 Methods of clay beneficationExpiredJul 18, 78Oct 14, 80[C04B]
4209128 Methods and apparatus for classifying fine particle solidsExpiredApr 06, 79Jun 24, 80[B04B]
4189889 Shaped metallic roofing plateExpiredMar 16, 78Feb 26, 80[E04D]

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