EP2492437A3

Activation device for use in a downhole well

Abstract

An activation device (10) for use in a downhole well for activation of a downhole tool in the well. The downhole tool has a seat (103) adapted to engage the activation device. The activation device can travel through a borehole of the downhole well to reach the seat. The activation device has an outer layer (22) and a core (24). The material of the outer layer resists erosion by drilling fluid when the activation device is in the borehole. The material of the core is eroded by drilling fluid when the activation device is engaged in the seat. The activation device (10) is then able to pass through the seat (103) There is also described a method of operating a downhole tool having a seat (103) for engaging an activation device. The method includes the step of eroding at least a portion of the activation device with drilling fluid until it can pass through the seat.

EP2492437A3, drawing sheet 1 — Sheet 1 of 1

Term

5.4 yearsto projected expiry

Projected expiry 27 February 2032, counted from filing; an application has no term until it is granted.

1 sheet

Sheet 1

Every citation, both ways

Citations
Document	Relation	Office	Cited during
EP2333232A2	Cites	European Patent Office (EPO)	Search report
US2799349A	Cites	United States of America	Search report
US2799479A	Cites	United States of America	Search report
US3339647A	Cites	United States of America	Search report

5 members in 3 offices; this record represents the family

This recordMember, by publication datePriority claim

Priority claims5

Priority claims
Document	Office	Kind	Date
201103295	United Kingdom	A	2011-02-25
201103295	United Kingdom	A	2011-02-25
201103295	United Kingdom	–	2011-02-25
201103295	–	–	–
GB20110003295	–	–	–

Members5

Family members, oldest first
Document	Office	Kind
GB201103295D0	United Kingdom	D0	2011-04-13
EP2492437A2	European Patent Office (EPO)	A2	2012-08-29
US2012217021A1	United States of America	A1	2012-08-30
EP2492437A3This record	European Patent Office (EPO)	A3	2013-04-10
EP2492437B1	European Patent Office (EPO)	B1	2015-12-09

76 legal events, as 10 offices reported them to INPADOC

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Events

Legal events, newest first
	Event	Code	Office
2026-04-13	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2026-04-09	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2025-04-23	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2018-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-07-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-06-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-06-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-06-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-06-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2017-08-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2017-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2017-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2017-01-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-12-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-11-30	Patent lapsedLapsedMM4A	MM4A	IE
2016-11-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-11-25	Notification of lapseLapsedST	ST	FR
2016-11-16	No opposition filedOpposition26N	26N	EP
2016-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-10-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-10-14	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
2016-10-14	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
2016-09-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-09-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-09-30	Patent ceasedCeasedPL	PL	CH
2016-09-01	Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119	R119	DE
2016-08-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-08-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-08-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-08-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-08-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-08-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-08-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-07-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-07-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-06-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-05-15	Deletion acc. to par. 5 (withdrawal of the translation of the ep patent)MK05	MK05	AT
2016-04-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-04-29	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2016-04-13	Patent invalid in the netherlands as no translation has been filedMP	MP	NL
2016-04-11	Invalidated european patentMG4D	MG4D	LT
2016-03-29	Entry of ep patent into national phase of norway [publ. of translation]T2	T2	NO
2016-01-21	Dpma publication of mentioned ep patent grantGrantedR096	R096	DE
2015-12-30	European patents granted designating irelandGrantedFG4D	FG4D	IE
2015-12-15	European patent takes effect as a national patent in ch/liEP	EP	CH
2015-12-15	Reference to at number (ep patent validated in austria)REF	REF	AT
2015-12-09	Designated contracting statesAK	AK	EP
2015-12-09	European patent grantedGrantedFG4D	FG4D	GB
2015-11-06	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
2015-10-16	Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS	GRAS	EP
2015-07-15	Intention to grant announcedINTG	INTG	EP
2015-06-15	Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP	GRAP	EP
2015-06-03	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2015-06-03	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2015-04-27	Amendment of ipc main classPREVIOUS MAIN CLASS: E21B0023040000R079	R079	DE
2013-11-20	Request for examination filed17P	17P	EP
2013-11-20	Designated contracting states (corrected)RBV	RBV	EP
2013-04-10	Designated contracting statesAK	AK	EP
2013-04-10	Request for extension of the european patentAX	AX	EP
2013-04-10	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2013-04-10	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2013-03-08	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
2012-08-29	Designated contracting statesAK	AK	EP
2012-08-29	Request for extension of the european patentAX	AX	EP
2012-08-28	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

Activation device for use in a downhole well

Abstract

Term

Priority claims5

Members5

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Events

Numbers

Titles3

Classification

Designated states2