Tatung Telecom Corporation

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Patent Activity in the Last 10 Years

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D434745 Pay telephoneJun 21, 99Dec 05, 00[1403]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6182811 Jam detector system for coin escrow deviceExpiredNov 19, 98Feb 06, 01[G07F]
5954182 Coin receiving mechanism having foreign object release deviceExpiredOct 30, 96Sep 21, 99[G07F]
5918181 Method and apparatus for tracking location of wireless terminals in a nanocellular digital cordless terminal network coupled to a local exchangeExpiredOct 15, 96Jun 29, 99[H04Q]
5511090 Wireless frequency-division-multiple-access direct sequence spread spectrum telephone systemExpiredMar 17, 94Apr 23, 96[H04B]
5299673 Coin receiving mechanism having a foreign object release deviceExpiredJun 13, 91Apr 05, 94[G07F]
4782937 Escrow device for coin-operated systemsExpiredNov 03, 86Nov 08, 88[G07F]
D294144 Coin telephone cabinetExpiredOct 30, 85Feb 09, 88[]

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