Voest-Alpine International Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5297612 Method for controlling the clamping forces exerted on a continuous casting moldExpiredNov 27, 92Mar 29, 94[B22D]
4909306 Stirring provision for a continuous casting plantExpiredOct 19, 84Mar 20, 90[B22D]
4763719 Apparatus for discontinuous withdrawing of a cast strandExpiredFeb 07, 84Aug 16, 88[B22D]
4687141 Jet nozzleExpiredJul 13, 84Aug 18, 87[B05B, B22D]
4610586 Apparatus for deburring of workpiecesExpiredSep 20, 84Sep 09, 86[B23D]
4603841 Ladle support machineExpiredJun 14, 84Aug 05, 86[C21B]
4589468 Continuous mold for a continuous casting plantExpiredNov 01, 83May 20, 86[B22D]
4588020 Surveillance system for curved continuous casting plantsExpiredJan 03, 84May 13, 86[B22D]
4532981 Continuous casting plantExpiredJun 03, 83Aug 06, 85[B22D]
4527609 Continuous casting plant for continuously casting a metal meltExpiredMay 06, 83Jul 09, 85[B22D]
4349230 Tunnel boring machineExpiredAug 10, 79Sep 14, 82[E21D]
4203626 Articulated boom-dipper-bucket assembly for a tunnel boring machineExpiredFeb 21, 79May 20, 80[E21D]

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