GWcom, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6778556 Asymmetrical data rates and power in wireless digital communicationExpiredJan 15, 97Aug 17, 04[H04Q, H04B]
6711418 Wireless personal mobile data terminal receiving a wide-area broadcast and capable of two-way communication in a local areaExpiredOct 13, 95Mar 23, 04[H04Q]
6278883 Communication protocol for a wireless data systemExpiredMay 17, 00Aug 21, 01[H04Q]
6272117 Digital sensing multi access protocolExpiredFeb 20, 98Aug 07, 01[H04Q]
6005853 Wireless network access schemeExpiredOct 02, 97Dec 21, 99[H04Q]
5974034 System and method for synchronized wide and local area communications utilizing a single frequencyExpiredJan 16, 97Oct 26, 99[H04Q]
5898904 Two-way wireless data network having a transmitter having a range greater than portions of the service areasExpiredOct 13, 95Apr 27, 99[H04Q]
5721733 Wireless network access schemeExpiredOct 13, 95Feb 24, 98[H04L]
5661476 Keyboard for personal information deviceExpiredFeb 23, 96Aug 26, 97[H03K]

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