W. & T. Avery Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5352877 Non-contact transaction system with token presence detectionExpiredMar 31, 92Oct 04, 94[G06K]
5200601 Flexible identification card or tokenExpiredNov 19, 90Apr 06, 93[G06K]
4947694 Vibrating force sensorExpiredMar 09, 89Aug 14, 90[G01L]
4561038 TransducersExpiredApr 04, 84Dec 24, 85[H01G]
4351403 Weighing scales incorporating printersExpiredMar 09, 81Sep 28, 82[G01G]
4276772 Force transducerExpiredOct 03, 79Jul 07, 81[G01L]

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