ROUNDED CUTTER POCKET HAVING REDUCED STRESSED CONCENTRATION - Patent 2173962

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EP 2 173 962 A2

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(88)	Date of publication A3:
	02.04.2009

(43)	Date of publication:
	14.04.2010 Bulletin 2010/15

(21)	Application number: 08772009.0

(22)	Date of filing: 26.06.2008

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International Patent Classification (IPC):

E21B 10/573^(2006.01)

E21B 10/55^(2006.01)

(86)	International application number:
	PCT/US2008/068304

(87)	International publication number:
	WO 2009/003088 (31.12.2008 Gazette 2009/01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA MK RS

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Priority:

26.06.2007 US 946300 P

(71)	Applicant: Baker Hughes Incorporated
	Houston, TX 77027 (US)

(72)	Inventors:
	BIRD, Marc, W. Houston, TX 77007 (US) OXFORD, Andy Magnolia, TX 77354 (US)

(74)	Representative: Hano, Christian et al
	v. Füner Ebbinghaus Finck Hano Patentanwälte Mariahilfplatz 3 81541 München 81541 München (DE)

(54)	ROUNDED CUTTER POCKET HAVING REDUCED STRESSED CONCENTRATION