Tamfelt Oy Ab

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2002/0153,296 Arrangement for fastening filter cloth to solid-liquid separatorAbandonedApr 18, 01Oct 24, 02[B01D]
5377722 Folded spiral seam including longitudinal bonding stitchExpiredJan 22, 93Jan 03, 95[D03D, D21F, F16G]
5349845 Apparatus for measuring the condition of a felt in a paper machineExpiredMar 31, 93Sep 27, 94[G01N]
5158117 Two-layer paper machine clothExpiredJul 30, 91Oct 27, 92[D03D]
5135615 Device for measuring the condition of a felt and for reconditioning itExpiredJun 18, 91Aug 04, 92[G01N, D21F]
5084174 Filter bag for a machine screenExpiredOct 23, 90Jan 28, 92[B01D]
5006399 Planar textile structureExpiredApr 28, 89Apr 09, 91[D03D]
4988409 Press felt with asymetric fiber crosssection in a surface layer of lowest permeabilityExpiredMay 31, 89Jan 29, 91[D21F]
4985084 Two-layer paper machine fabricExpiredJul 09, 90Jan 15, 91[D03D]
4982766 Paper machine fabricExpiredApr 25, 90Jan 08, 91[D03D]
4974642 Connecting thread arrangement in dual fabric papermaking fabricExpiredJun 02, 89Dec 04, 90[D03D]
4945612 System and a method for joining the ends of a band-shaped elongate elementExpiredOct 14, 88Aug 07, 90[F16G]
4917937 Cloth for a paper machineExpiredApr 28, 89Apr 17, 90[B32B]
4918522 Method of taking pictures of a quick-moving object by means of video methodExpiredAug 09, 88Apr 17, 90[H04N]
4780184 Method for the adjustment of the dewatering in the wire section of a paper machineExpiredOct 22, 86Oct 25, 88[D21F]
4772504 Press feltExpiredAug 22, 86Sep 20, 88[D21F]
4698250 Method for the manufacture of a press felt and press feltExpiredOct 31, 86Oct 06, 87[B32B]
4695015 Improvements relating to belts of inter-woven spiral wiresExpiredMar 06, 86Sep 22, 87[B21F]
4692059 Method of and a means for protecting shores against oil pollutantsExpiredFeb 06, 86Sep 08, 87[E02B]
4681287 Spiral wire and a method of manufacturing such a wireExpiredSep 06, 85Jul 21, 87[B21F]

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