EC CORPORATION

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Patent # Title Filing Date Issue Date Intl Class

Expired/Abandoned/Withdrawn Patents

Patent # Title Filing Date Issue/Pub Date Intl Class
5,283,731 Computer-based classified ad system and methodDec 23, 92Feb 01, 94[H04M, G06F, G06G]
4,658,416 Automatic call transfer system capable of carrying out call transfer without manual operationFeb 11, 85Apr 14, 87[H04Q]
4,519,660 Electrical connectors with quasi-terminal pinsMar 15, 84May 28, 85[H01R]

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