US Patent D640909 Two stage sharpener

Patent D640909 was granted and assigned to Wusthof-Trident Of America, Inc. on July, 2011 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

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Wusthof-Trident Of America, Inc.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

D640909

Patent Inventor Names

Cynthia Fu Chit0

Rene Henry Stutz0

Robert Krane0

Date of Patent

July 5, 2011

Patent Application Number

29363201

Date Filed

June 7, 2010

Patent Citations Received

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US Patent D1027598 Knife sharpener

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US Patent D1016589 Knife sharpener casing

Patent Primary Examiner

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Phillip S. Hyder

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