US Patent D839959 Writing instrument
Patent D839959 was granted and assigned to Riteline Llc on February, 2019 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
January 4, 2017
Date of Patent
February 5, 2019
Patent Applicant
Patent Application Number
29589835
Patent Citations Received
Patent Inventor Names
Enmin Zhang
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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