Niravoice, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4852129 Data compression system using frequency band translation and intermediate sample extrapolationExpiredJul 21, 86Jul 25, 89[H04B]
4825451 Technique for transmission of voice communications and apparatus useful thereinExpiredApr 19, 84Apr 25, 89[H04B]
4805208 Modem compression system for telephone networkExpiredJan 15, 88Feb 14, 89[H04M]

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