EP0808880A3

Silanized silicas

Abstract

Silica with the following physicochemical properties: specific surfacem2/G80 - 400primarynm7 - 40tapped densityg / l50 - 300pH3 - 10Carbon content%0.1 - 15DBP number%<200 is prepared by spraying a silica with intensive mixing, optionally first with water or dilute acid and then sprayed with a surface modifying reagent or a mixture of several surface modifying reagents, mixed, annealed, then destructured / densified and post-milled.

Term

Term ended

Projected expiry passed 10 April 2017, 9.5 years ago.

Every citation, both ways

Citations
Document	Relation	Office	Category	Cited during	Relevant claims
DE2403783A1	Cites	Germany	XA	Search report	2
US4208316A	Cites	United States of America	X	Search report	1-3

3 priority claims, no other members on record

This recordMember, by publication datePriority claim

Priority claims3

Priority claims
Document	Office	Kind	Date
19616781	Germany	A	1996-04-26
19616781	Germany	–	1996-04-26
DE1996116781	–	–	–

35 legal events, as 5 offices reported them to INPADOC

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	Event	Code	Office
2017-07-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2017-05-03	Patent expired after termination of 20 yearsExpiredPE20	PE20	GB
2017-04-19	Patent expired because of reaching the maximum lifetime of a patentExpiredMK	MK	NL
2017-04-10	Expiry of rightR071	R071	DE
2016-08-31	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2016-07-29	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2016-07-29	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2016-06-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2016-04-21	Fee paymentPLFP	PLFP	FR
2010-03-24	Assignments of patentsSD	SD	NL
2010-03-24	Modifications of names of proprietors of patentsTD	TD	NL
2010-03-05	Change of addressCA	CA	FR
2010-03-05	Change of name or company nameCD	CD	FR
2010-03-05	Change in legal formCJ	CJ	FR
2004-01-02	No opposition filedOpposition26N	26N	EP
2003-11-14	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
2003-11-14	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
2003-08-22	Fr: translation filedET	ET	EP
2003-04-30	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)GBT	GBT	EP
2003-02-13	Corresponds to:REF	REF	EP
2003-01-08	Designated contracting statesAK	AK	EP
2003-01-08	European patent grantedGrantedNOT ENGLISHFG4D	FG4D	GB
2002-11-22	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
2002-10-21	Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOS IGRAGRAH	GRAH	EP
2002-07-26	Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOS IGRAGRAH	GRAH	EP
2001-05-02	Party data changed (applicant data changed or rights of an application transferred)RAP1	RAP1	EP
2000-12-20	First examination report despatched17Q	17Q	EP
1999-11-03	Information provided on ipc code assigned before grant6C 09C 1/30 A, 6C 09C 3/12 B, 6C 09D 7/12 B, 6B 01J 2/30 B, 6C 09K 3/14 B, 6C 08K 9/06 BRIC1	RIC1	EP
1999-10-27	Designated contracting statesAK	AK	EP
1999-09-10	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
1999-09-08	Party data changed (applicant data changed or rights of an application transferred)RAP3	RAP3	EP
1999-06-30	Party data changed (applicant data changed or rights of an application transferred)RAP1	RAP1	EP
1997-11-26	Request for examination filed17P	17P	EP
1997-11-26	Designated contracting statesAK	AK	EP
1997-10-10	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

Silanized silicas

Abstract

Term

Priority claims3

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Titles3

Classification

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