ETA Systems, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4852015 Automatic circuit layout routerExpiredJun 24, 87Jul 25, 89[G06F]
4805096 Interrupt systemExpiredMar 06, 87Feb 14, 89[G06F]
4791578 Logic gate system designExpiredDec 30, 86Dec 13, 88[G06F]
4769558 Integrated circuit clock bus layout delay systemExpiredJul 09, 86Sep 06, 88[H03K]
4763298 Memory assembly with cooling insertExpiredJan 15, 87Aug 09, 88[G11C, H05K]
4760292 Temperature compensated output bufferExpiredOct 29, 86Jul 26, 88[H03K]
4714924 Electronic clock tuning systemExpiredDec 30, 85Dec 22, 87[H03K, H04Q]
4712388 Cryostat cooling systemExpiredJan 07, 87Dec 15, 87[F25B]
4701920 Built-in self-test system for VLSI circuit chipsExpiredNov 08, 85Oct 20, 87[G01R]

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