US Patent 8889590 Irreversible thermochromic ink compositions
Patent 8889590 was granted and assigned to Sanford L.P. on November, 2014 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
December 31, 2013
Date of Patent
November 18, 2014
Patent Applicant
Patent Application Number
14145662
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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