VOITH PAPER, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6950777 Method and system for assessing pulp and paper mill performanceExpiredJul 29, 03Sep 27, 05[G06F]
6860030 Control system for gap measuringExpiredNov 15, 00Mar 01, 05[G01L, G01B, D21F]
6588331 Screw press inlet sectionExpiredDec 19, 00Jul 08, 03[B30B]
6589389 Test method for determining bleed-throughs in old corrugated container fiber pulpExpiredSep 26, 01Jul 08, 03[G01N, D21C]
6544385 Channel pulperExpiredSep 16, 02Apr 08, 03[D21B, B02C]
6508422 Pulper for a fiber stock preparation systemExpiredMay 11, 01Jan 21, 03[B02C]
6485612 Air press assembly for use in a paper-making machineExpiredMay 18, 01Nov 26, 02[D21F]
6458241 Apparatus for chemically loading fibers in a fiber suspensionExpiredJan 08, 01Oct 01, 02[D21H]
6451165 Channel pulperExpiredNov 09, 00Sep 17, 02[D21C]
6425982 System for removing bleed-throughs from old corrugated container fiber pulpExpiredMar 06, 01Jul 30, 02[D21B, B03D]
6387218 Air press seal in paper-making machineExpiredOct 30, 00May 14, 02[D21F]

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