US Patent D677780 Filter cartridge

Patent D677780 was granted and assigned to 3M on March, 2013 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

D677780

Patent Inventor Names

Kyoung-Ho Lee0

Dong-Il Choi0

Dong-Sun Noh0

Jin-Ho Lee0

BongHyup Kang0

Date of Patent

March 12, 2013

Patent Application Number

29389722

Date Filed

April 15, 2011

Patent Citations Received

‌

US Patent D987069 Face mask

Patent Primary Examiner

‌

Richard E. Chilcot, Jr.

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