Magnetics International, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6117205 Soft magnetic metal components manufactured by powder metallurgy and infiltrationExpiredNov 20, 98Sep 12, 00[B22F]
5925836 Soft magnetic metal components manufactured by powder metallurgy and infiltrationExpiredNov 04, 97Jul 20, 99[B22F]
5594186 High density metal components manufactured by powder metallurgyExpiredJul 12, 95Jan 14, 97[B22F]
5403408 Non-uniaxial permanent magnet materialExpiredOct 19, 92Apr 04, 95[H01F]
4622532 Hourglass magnetExpiredApr 17, 85Nov 11, 86[H01F]
4561538 Take-up apparatusExpiredDec 09, 83Dec 31, 85[B65G]
4414522 Fabricated lifting magnet assemblyExpiredMay 03, 82Nov 08, 83[H01F]
4378548 Lifting magnet incorporating cooling meansExpiredMar 23, 81Mar 29, 83[H01F]
4359382 Magnetic structure for a magnetic separatorExpiredMay 15, 81Nov 16, 82[B03C]
4323329 Hydraulic-driven electro-lifting deviceExpiredFeb 21, 79Apr 06, 82[B66C]
4221664 Direct coupled drive for a magnetic separatorExpiredAug 02, 78Sep 09, 80[B07B]

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