US Patent 7861808 Cutter for maintaining edge sharpness
Patent 7861808 was granted and assigned to Smith International on January, 2011 by the United States Patent and Trademark Office.
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Patent abstract
A cutter comprising a base portion, an ultrahard layer disposed on said base portion, and at least one recessed region on an outer surface of the cutter. A start of the recessed region disposed a selected distance behind a cutting face.
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Patent Inventor Names
Youhe Zhang0
Yuelin Shen0
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Official Website
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US Patent 07861808 Cutter for maintaining edge sharpness US Patent 7861808 Cutter for maintaining edge sharpness
Infobox
Patent Number
078618080
Patent Number
78618080
Edits on 26 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
078618080
Date of Patent
January 4, 2011
0Patent Application Number
113652980
Date Filed
March 1, 2006
0Official Website
Patent Primary Examiner
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US Patent 07861808 Cutter for maintaining edge sharpness
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07861808
Date of patent
January 4, 2011
Patent application number
11365298
Date Filed
March 1, 2006
Patent primary examiner
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