US Patent 7466689 Packet network based emergency backup telephone system
Patent 7466689 was granted and assigned to Art Technology Group on December, 2008 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
November 6, 2002
0
Date of Patent
December 16, 2008
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Patent Application Number
10288463
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Patent Inventor Names
John Piescik
0
Ian Halpern
0
Joseph Siegrist
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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