EP0341874A3

Elastomeric filtration materials

Abstract

Elastomeric nonwoven fibrous fluid filter media for removal of particulate contaminants from the fluid are provided. The filter media comprises thermoplastic elastomeric melt-blown small diameter fibers, the small diameter fibers being randomly arrayed, the filter media having substantially uniform stretch properties in all directions and whose filtration properties are independent of filter media elongations sufficient to increase the filter media surface area at least aout 10 percent. The filter media is particularly useful as a prefilter on respirators.

Term

Term ended

Projected expiry passed 28 April 2009, 17.4 years ago.

Every citation, both waysCites: the store holds 4 of 5

Citations
Document	Relation	Office	Category	Cited during
EP0246811A2	Cites	European Patent Office (EPO)	A	Search report
US4354901A	Cites	United States of America	AD	Search report
US4620932A	Cites	United States of America	A	Search report
EP0183059A1	Cites	European Patent Office (EPO)	A	Search report
PATENT ABSTRACTS OF JAPAN vol. 10, no. 303 (C-378)(2359), 16 October 1986; & JP-A-61 118 113 (JAPAN VILENE CO LTD) 05.06.1986	Non-patent	–	–	Search report

9 members in 5 offices

This recordMember, by publication datePriority claim

Priority claims3

Priority claims
Document	Office	Kind	Date
193809	United States of America	–	1988-05-13
19380988	United States of America	A	1988-05-13
US19880193809	–	–	–

Members9

Family members, oldest first
Document	Office	Kind
EP0341874A2	European Patent Office (EPO)	A2	1989-11-15
JPH01317514A	Japan	A	1989-12-22
US5035240A	United States of America	A	1991-07-30
EP0341874A3This record	European Patent Office (EPO)	A3	1991-11-21
CA1327945C	Canada	C	1994-03-22
EP0341874B1	European Patent Office (EPO)	B1	1994-06-15
DE68916109D1	Germany	D1	1994-07-21
DE68916109T2	Germany	T2	1994-12-01
JP2984279B2	Japan	B2	1999-11-29

27 legal events, as 3 offices reported them to INPADOC

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Events

Legal events, newest first
	Event	Code	Office
2009-09-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2008-04-30	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2007-03-09	Notification of lapseLapsedST	ST	FR
2006-12-27	Gb: european patent ceased through non-payment of renewal feeCeasedGBPC	GBPC	EP
2006-11-01	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2006-04-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2006-04-28	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2005-05-31	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2005-04-20	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2005-04-18	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2002-01-01	European patent in force as of 2002-01-01IF02	IF02	GB
1995-06-07	No opposition filedOpposition26N	26N	EP
1995-04-14	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
1995-04-14	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
1994-09-23	Fr: translation filedET	ET	EP
1994-07-21	Corresponds to:REF	REF	EP
1994-06-15	Designated contracting statesAK	AK	EP
1994-05-25	Party data changed (applicant data changed or rights of an application transferred)RAP1	RAP1	EP
1994-04-29	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
1994-04-18	It: translation for a ep patent filedITF	ITF	EP
1994-04-18	It: translation for a ep patent filedITF	ITF	EP
1993-01-20	First examination report despatched17Q	17Q	EP
1991-11-21	Designated contracting statesAK	AK	EP
1991-10-01	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
1991-02-06	Request for examination filed17P	17P	EP
1989-11-15	Designated contracting statesAK	AK	EP
1989-09-30	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

Elastomeric filtration materials

Abstract

Term

Priority claims3

Members9

Over the term

Events

Numbers

Titles3

Classification

Designated states1