ADVANCED CELLULAR TELCOM, INC., A NJ CORP.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4941166 Muting circuit for telephone answering machineExpiredJan 04, 88Jul 10, 90[H04M]
4768224 Single telephone line call forwarding deviceExpiredJun 01, 87Aug 30, 88[H04M]
4726048 Telephone privacy circuitExpiredApr 03, 84Feb 16, 88[H04M]
4670900 Single line telephone call forwarding deviceExpiredApr 17, 85Jun 02, 87[H04M]
4626630 Telephone call forwarding deviceExpiredDec 20, 84Dec 02, 86[H04M]

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