PCC Composites, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5834689 Cubic boron nitride composite structureExpiredDec 02, 93Nov 10, 98[H02G, H05K]
5672433 Magnesium composite electronic packagesExpiredNov 13, 95Sep 30, 97[C22C]
5662157 Package and a method of forming a metal matrix component with internal and external structuresExpiredMar 20, 95Sep 02, 97[B22D]
5657811 Cast-in hermetic electrical feed-throughsExpiredJun 01, 95Aug 19, 97[B22D]
5553656 Method of directionally cooling using a fluid pressure induced thermal gradientExpiredMar 20, 95Sep 10, 96[B22D]
5540271 Low vapor point material casting apparatus and methodExpiredAug 30, 93Jul 30, 96[B22D]
5524699 Continuous metal matrix composite castingExpiredFeb 03, 94Jun 11, 96[B22D, B22C]
5524697 Method and apparatus for single die composite productionExpiredFeb 01, 93Jun 11, 96[B22D]
5455118 Plating for metal matrix compositesExpiredFeb 01, 94Oct 03, 95[B22F]
5451352 Method of forming a diamond composite structureExpiredJan 29, 93Sep 19, 95[B29C]
5398745 Method of directionally cooling using a fluid pressure induced thermal gradientExpiredMay 07, 93Mar 21, 95[B22D]
5348071 Top fill castingExpiredJun 15, 93Sep 20, 94[B22D]
5337800 Reactive coatingExpiredSep 09, 92Aug 16, 94[B22D, B22C]
5329983 Sealed chamber die castings of metal matrix componentsExpiredOct 08, 91Jul 19, 94[B22D]
5311920 Method of forming a metal matrix component with internal and external structuresExpiredMar 08, 93May 17, 94[B22D]
5301739 Method for casting and densificationExpiredJun 30, 92Apr 12, 94[B22D]
5297609 Investment casting of metal matrix compositesExpiredMay 15, 92Mar 29, 94[B22D, B22C]
5255729 Matched CTE casting for metal matrix compositesExpiredNov 20, 91Oct 26, 93[B22D]
5244031 Dual mode gas system for castingExpiredOct 09, 90Sep 14, 93[B22D]
5183096 Method and apparatus for single die composite productionExpiredMar 15, 90Feb 02, 93[B22D]

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