Induction hardened blade

United States of America Patent

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Nov 27, 2012
Grant Date
Aug 14, 2008
app pub date
Feb 6, 2008
filing date
Jul 8, 2005

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Abstract

A utility knife blade comprises a cutting edge portion and a remaining portion. The remaining portion is tempered martensite and has a first hardness. The cutting edge portion comprises a region that has been locally re-heat treated so that the microstructure in the cutting edge portion is untempered martensite having a hardness greater than the first hardness.

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Patent Owner(s)

Patent Owner	Address
STANLEY BLACK & DECKER INC	1000 STANLEY DRIVE MR-045 NEW BRITAIN CT 06053

International Classification(s)

B26B:HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Howells, Hadyn	Derbyshire, GB	2	28

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Induction hardened blade

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United States of America Patent

12068427

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PATENT NO	8316550
APP PUB NO	20080189959A1
SERIAL NO	12068427
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
November 27, 2012	US,8316550,B2 US8316550B2	GRANTED PATENT AS SECOND PUBLICATION
August 14, 2008	US,20080189959,A1 US20080189959A1	FIRST PUBLISHED PATENT APPLICATION

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12068427

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