Tate & Lyle Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4435440 SweetenersExpiredDec 30, 76Mar 06, 84[A23L]
4421850 Immobilization of enzymesExpiredFeb 24, 81Dec 20, 83[C12P, C12N]
4378089 Surface irrigation apparatusExpiredFeb 24, 81Mar 29, 83[A01G]
4345947 Clarification of glucose syrupsExpiredApr 28, 81Aug 24, 82[C13K]
4342603 Crystalline glucose and process for its productionExpiredFeb 24, 81Aug 03, 82[C13K]
4313008 Synthesis of S-3-chloro-1,2-propanediolExpiredMay 17, 79Jan 26, 82[C07C]
4298725 Process for the preparation of polysaccharide 9ExpiredFeb 01, 78Nov 03, 81[C12P, A23G]
4274879 Synthetic bone ashExpiredJun 03, 80Jun 23, 81[C01B, C04B]
4234688 Polysaccharide producing process using protease and AzotobacterExpiredMar 10, 78Nov 18, 80[C12R, C12P, C13L]
4228198 Sweetening compositions containing arabinogalactanExpiredMay 26, 78Oct 14, 80[A23L]
4225590 Male fertility-inhibiting compositions of 6-chlorodeoxy-saccharidesExpiredMar 14, 78Sep 30, 80[A61K, C07H]

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