US Patent 7634424 Network-based sweepstakes systems and method
Patent 7634424 was granted and assigned to Mindspark Interactive Network on December, 2009 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
October 4, 1999
Date of Patent
December 15, 2009
Patent Application Number
09412013
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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