Data Race, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6589322 Oil seal liquid separatorExpiredOct 03, 01Jul 08, 03[B01D]
2002/0118,671 Extending office telephony and network data services to a remote client through the internetAbandonedJul 12, 01Aug 29, 02[H04L]
6418203 System and method for communicating audio information between a computer and a duplex speakerphone modemExpiredJan 11, 00Jul 09, 02[H04L]
6301339 System and method for providing a remote user with a virtual presence to an officeExpiredDec 22, 97Oct 09, 01[H04M]
6295357 System and method for ringing other subscriber telephones connected to a telephone line during data communications on the telephone lineExpiredJul 07, 97Sep 25, 01[H04L]
6292484 System and method for low overhead multiplexing of real-time and non-real-time dataExpiredJun 10, 98Sep 18, 01[H04L]
6212274 Line powered modemExpiredNov 12, 97Apr 03, 01[H04M]
6064693 System and method for handling underrun of compressed speech frames due to unsynchronized receive and transmit clock ratesExpiredMay 01, 97May 16, 00[H04L, H04B]
6044108 System and method for suppressing far end echo of voice encoded speechExpiredMay 28, 97Mar 28, 00[H04B]
6009151 PC card modem with microphone and speaker connectivityExpiredAug 27, 96Dec 28, 99[H04M]
5889845 System and method for providing a remote user with a virtual presence to an officeExpiredNov 01, 96Mar 30, 99[H04M]
5870465 Telephony adapter system for providing a user with a virtual presence to an officeExpiredAug 21, 97Feb 09, 99[H04M]
5764639 System and method for providing a remote user with a virtual presence to an officeExpiredNov 15, 95Jun 09, 98[H04J]
5752082 System for multiplexing pins of a PC card socket and PC card bus adapter for providing audio communication between PC card and computer sound systemExpiredOct 17, 95May 12, 98[G06F]
5483576 Method and apparatus for communicating data over a radio transceiver with a modemExpiredJun 01, 95Jan 09, 96[H04M]
4597073 Full-duplex split-speed data communication unit for remote DTEExpiredAug 27, 85Jun 24, 86[H04L]

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