CLYDE INDUSTRIES LIMITED

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5772135 Jaw crushersExpiredFeb 24, 97Jun 30, 98[B02C]
5388308 Vacuum arm joint assemblyExpiredJul 31, 92Feb 14, 95[E05C]
4836926 Staggered spiral splittersExpiredJul 17, 87Jun 06, 89[B03B]
4795553 Spiral separatorExpiredNov 17, 82Jan 03, 89[B03B]
4758334 Continuous feed and discharge mineral concentrator with riffles angled relative to a longitudinal axisExpiredJul 16, 86Jul 19, 88[B03B]
4747943 Splitter assemblyExpiredJul 30, 86May 31, 88[B03B]
4614580 Spiral separatorExpiredDec 21, 84Sep 30, 86[B03B]
4597861 Spiral separatorExpiredDec 07, 84Jul 01, 86[B03B]
4563279 Spiral separatorsExpiredDec 13, 84Jan 07, 86[B03B, B01D]
4553673 Method and apparatus for obtaining undercuts of concentrates from pulp flow in spiral separatorsExpiredNov 02, 82Nov 19, 85[B03B]
4545900 Spiral separatorsExpiredSep 24, 82Oct 08, 85[B03B]
4505811 Mineral processing apparatusExpiredOct 14, 83Mar 19, 85[B03B]
4476980 Spiral separatorExpiredNov 17, 82Oct 16, 84[B03B]
D270186 Metal sectionExpiredSep 02, 81Aug 16, 83[D250]
D270187 Channel guide section for windlocked rolling doorExpiredSep 10, 81Aug 16, 83[D250]
D270188 Guide sectionExpiredSep 02, 81Aug 16, 83[D250]
4384650 Spiral separatorExpiredApr 02, 81May 24, 83[B07C]
4324334 Spiral separatorsExpiredMay 21, 81Apr 13, 82[B03B]
4277330 Spiral separatorsExpiredJan 29, 80Jul 07, 81[B03B]
4209386 Method and apparatus for the wet gravity concentration of oresExpiredNov 21, 77Jun 24, 80[B03B]

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