EP2231997A2

Wellbore pipe centralizer having increased restoring force and self-sealing capability

Abstract

This record has no abstract on file.

Term

Projected expiry 24 December 2028.

Every citation, both ways

Citations
Document	Relation	Office	Cited during
US8397836B2	Cited by	United States of America	Applicant
US10233708B2	Cited by	United States of America	Applicant
US9823373B2	Cited by	United States of America	Applicant

14 members in 9 offices

This recordMember, by publication datePriority claim

Priority claims3

Priority claims
Document	Office	Kind	Date
965019	United States of America	–	2007-12-27
96501907	United States of America	A	2007-12-27
2008088278	United States of America	W	2008-12-24

Members14

Family members, oldest first
Document	Office	Kind
US2009166027A1	United States of America	A1	2009-07-02
CA2710857A1	Canada	A1	2009-07-09
WO2009086442A2	World Intellectual Property Organization (WIPO)	A2	2009-07-09
WO2009086442A3	World Intellectual Property Organization (WIPO)	A3	2010-01-07
US7708064B2	United States of America	B2	2010-05-04
EP2231997A2This record	European Patent Office (EPO)	A2	2010-09-29
CN101932789A	China	A	2010-12-29
EA201070800A1	Eurasian Patent Organization (EAPO)	A1	2010-12-30
MX2010007158A	Mexico	A	2013-03-25
CN101932789B	China	B	2013-06-19
CA2710857C	Canada	C	2014-05-27
MY152778A	Malaysia	A	2014-11-28
BRPI0821534A2	Brazil	A2	2015-06-16
BRPI0821534A8	Brazil	A8	2016-01-26

9 legal events, as the office reported them to INPADOC

Over the term

Point at a mark for the event

Events

Legal events, newest first
	Event	Code
2015-12-16	Application deemed to be withdrawnWithdrawn18D	18D
2015-11-13	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA	STAA
2011-11-16	Party data changed (applicant data changed or rights of an application transferred)RAP1	RAP1
2011-04-06	Request for extension of the european patent (deleted)DAX	DAX
2011-01-26	Information on inventor provided before grant (corrected)RIN1	RIN1
2010-09-29	Request for examination filed17P	17P
2010-09-29	Designated contracting statesAK	AK
2010-09-29	Request for extension of the european patentAX	AX
2010-08-27	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI