USS/KOBE STEEL COMPANY

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6083453 Tundish having fume collection provisionsExpiredMar 02, 98Jul 04, 00[C21B]
6077473 Torch cutting enclosure having fume collection provisionsExpiredMay 07, 98Jun 20, 00[B23K, C21C]
6071467 Technique and apparatus for ladle cleanoutExpiredMar 13, 98Jun 06, 00[C21C]
6036914 Dumping bay with fume collecting provisionsExpiredMay 08, 98Mar 14, 00[C21B]
6017486 Comprehensive fume collection system for production of leaded steelExpiredApr 23, 98Jan 25, 00[C21B]
5993727 Fume collecting ladle coverExpiredApr 23, 98Nov 30, 99[C21B]

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