Lithium Corporation of America

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4976886 Preparation of organometallic and organobimetallic compoundsExpiredFeb 25, 88Dec 11, 90[C09K]
4944894 Ether free organometallic amide compositionsExpiredFeb 25, 88Jul 31, 90[C09K]
4929588 Sodium removal, from brinesExpiredJun 08, 89May 29, 90[B01J]
4859343 Sodium removal from brinesExpiredDec 02, 87Aug 22, 89[C02F]
4855059 Purification of brines with hydrous metal oxide ion exchangersExpiredJul 19, 88Aug 08, 89[B01D]
4820672 Hydrocarbon soluble and insoluble organo magnesium chloride complexes, processes and usesExpiredMay 09, 88Apr 11, 89[B01J]
4820879 Preparation of hydrocarbyloxy magnesium halidesExpiredJun 05, 87Apr 11, 89[C07C]
4792640 Hydrocarbyloxy magnesium halidesExpiredMar 13, 87Dec 20, 88[C07C]
4781756 Removal of lithium nitride from lithium metalExpiredJul 02, 87Nov 01, 88[C22B, C22C]
4748283 Hydrocarbon and chlorinated hydrocarbon-soluble magnesium dialkoxidesExpiredFeb 17, 87May 31, 88[C07F, C07C]
4732751 High purity lithium oxide processExpiredJun 01, 87Mar 22, 88[C01D]
4723962 Process for recovering lithium from salt brinesExpiredJun 05, 86Feb 09, 88[B01D, C01D]
4678614 Hydrocarbon-soluble organometallic complexes of magnesium and alkali metals and method of producing sameExpiredNov 27, 85Jul 07, 87[C07F]
4634786 Hydrocarbon and chlorinated hydrocarbon-soluble magnesium dialkoxidesExpiredSep 27, 84Jan 06, 87[C07F]
4555498 Preparation of certain alkaline earth metal organometallic compoundsExpiredNov 08, 84Nov 26, 85[C08F, C07C]
4460515 Hydrocarbon solvent solutions of complexes of sec-butyllithium and ethyllithiumExpiredJul 06, 82Jul 17, 84[C07F]
4429054 Hydrocarbon solvent solutions of complexes of isopropyllithium and ethyllithiumExpiredJul 09, 82Jan 31, 84[B01J]
4399078 Hydrocarbon solvent solutions of complexes of N-butyllithium and ethyllithiumExpiredJul 06, 82Aug 16, 83[C07F]
4320105 Pellitizing methodExpiredOct 20, 80Mar 16, 82[C01P, B01J]
4206191 Preparation of lithium amideExpiredDec 18, 78Jun 03, 80[C01D]

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