AT&T COMMUNICATIONS, INCORPORATED, 295 NORTH MAPLE AVENUE, BASKING RIDGE, NJ., 07920, A CORP OF NY.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4953198 Public cordless telephoneExpiredJul 05, 89Aug 28, 90[H04M]
4737983 Automatic call distributor telephone serviceExpiredOct 02, 85Apr 12, 88[H04M]
4726056 Shared flexible rating of telecommunications callsExpiredJun 25, 86Feb 16, 88[H04M]
4669113 Integrated network controller for a dynamic nonhierarchical routing switching networkExpiredApr 26, 85May 26, 87[H04M]

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