US Patent D663902 Hearing protector headband

Patent D663902 was granted and assigned to 3M on July, 2012 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

D6639020

Patent Inventor Names

Martin Birath0

Robert Karlsson0

August Michael0

Hans Nystrom0

Oskar Juhlin0

Date of Patent

July 17, 2012

Patent Application Number

293989600

Date Filed

August 8, 2011

Patent Citations Received

‌

US Patent D1003269 Headphone band

Patent Primary Examiner

‌

Paula Greene

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