CAPITOL CIRCUITS CORPORATION, A CORP OF MASSACHUSETTS

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4709991 Liquid crystal display with barrier layer to reduce permeabilityExpiredJun 19, 86Dec 01, 87[C09K, G02F]
D280210 Ink ribbon cartridgeExpiredJun 13, 83Aug 20, 85[]
4507003 Paper tape feed and drive mechanismExpiredMay 26, 83Mar 26, 85[B41J]
4415287 Printing device for printing characters in rows on data carriersExpiredMar 20, 81Nov 15, 83[B41J]

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