B&U Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6059639 Shot blast machine with improved tumbling capabilitiesExpiredFeb 26, 99May 09, 00[B24C]
5888125 Abrasive blast wheel with improved serviceabilityExpiredNov 06, 97Mar 30, 99[B24C]
5620362 Shot blast machine with hold down for parts being deflashedExpiredMar 04, 96Apr 15, 97[B24C]
5361548 Multi-station abrading apparatusExpiredJul 24, 92Nov 08, 94[B24C]
4659391 Method and apparatus for removing excess material from sand coresExpiredMar 29, 85Apr 21, 87[B24C, B08B]

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