Gulton Industries, Inc.

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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Expired/Abandoned/Withdrawn Patents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
5031080 Portable cockpit light assemblyExpiredMay 24, 90Jul 09, 91[F21V]
5014347 Field telephone systemExpiredApr 11, 89May 07, 91[H04B]
5005305 Magnetically operated display deviceExpiredOct 20, 89Apr 09, 91[G09F]
4934886 Fastening assembly and method of fasteningExpiredOct 07, 88Jun 19, 90[F16B]
4907142 Lighting fixture with diffuser for light and airExpiredDec 07, 87Mar 06, 90[F21V, B60Q, F21S]
4847888 Field telephone systemExpiredFeb 16, 88Jul 11, 89[H04M]
4707673 Directional coupling transformer for bi-directional full duplex data busExpiredJun 10, 86Nov 17, 87[H03H]
4661808 Variable font displayExpiredJan 31, 85Apr 28, 87[G09G]
4604298 Finger line screen printing method and apparatusExpiredFeb 12, 85Aug 05, 86[H05K]

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