ADVANTRA INTERNATIONAL N.V.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6094146 Method of, and communication system for, sending messagesExpiredJul 09, 97Jul 25, 00[H04Q]
5889783 Data communicationExpiredOct 10, 95Mar 30, 99[G06F]
5851691 Battery size adaptor for portable apparatusExpiredOct 29, 97Dec 22, 98[H01M]
5818344 Selective call system with bit rate embedded in synchronization code wordExpiredSep 18, 97Oct 06, 98[H04Q]
5794123 Fade recovery in digital message transmission systemsExpiredNov 20, 95Aug 11, 98[H04Q]
5553299 Programming/reprogramming a point to point communication apparatusExpiredJun 01, 94Sep 03, 96[G06F]
5459457 Paging or other selective call system with battery power conservationExpiredJul 26, 94Oct 17, 95[H04Q, H04B]
5363377 Communications system and receiver for use therein which indicates time based on a selected time message signal from a central stationExpiredApr 09, 93Nov 08, 94[H04L, H04H, H04J]
4768032 Pager decoding systemExpiredMar 23, 87Aug 30, 88[H04Q]

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