Societe Industrielle de Combustible Nucleaire

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5961550 Heart valve activating system and activated heart valveExpiredAug 21, 97Oct 05, 99[A61F]
5057124 Composite abrasive product comprising an active part of ultra-hard material and method of manufacturing such a productExpiredOct 23, 89Oct 15, 91[B24D]
5002828 Composite diamond abrasive, process for preparation, and drilling or machining which are equipped with itExpiredNov 16, 88Mar 26, 91[B24B, B24D, B32B]
4984642 Composite tool comprising a polycrystalline diamond active partExpiredNov 27, 89Jan 15, 91[E21B]
4944559 Tool for a mine working machine comprising a diamond-charged abrasive componentExpiredJun 01, 89Jul 31, 90[E21C]
4906528 Composite cutting element containing cubic boron nitride and method of making the sameExpiredJul 07, 89Mar 06, 90[B22F]
4824442 Method of manufacturing composite thermostable abrasive productsExpiredJun 14, 88Apr 25, 89[B24D]
4798026 Thermostable abrasive diamond-containing productExpiredMay 15, 87Jan 17, 89[B24D]
4650776 Cubic boron nitride compact and method of makingExpiredFeb 20, 85Mar 17, 87[C04B]
4647546 Polycrystalline cubic boron nitride compactExpiredOct 30, 84Mar 03, 87[C04B]

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