US Patent D752816 Hearing protector
Patent D752816 was granted and assigned to 3M on March, 2016 by the United States Patent and Trademark Office.
Is a
Current Assignee
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Date Filed
July 22, 2014
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Date of Patent
March 29, 2016
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Patent Applicant
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Patent Application Number
29497271
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Patent Inventor Names
Brenda M. Bonney
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Douglas D. Fletcher
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Eric O. Hemberg
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Lindsay J. Adams
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Nicolas A. Echeverri
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Oscar M. Hemberg
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Patent Jurisdiction
Patent Number
Patent Primary Examiner
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