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EP0494157

European procedure

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Extract from the Register of European Patents

EP About this file: EP0494157

EP0494157 - FLOTATION PROCESS FOR REMOVING FILLERS FROM WASTE PAPER IN THE PRESENCE OF POLYMERS AND COPOLYMERS [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 25.11.1995 Database last updated on 11.04.2026
Most recent event Tooltip	25.11.1995	No opposition filed within time limit	published on 17.01.1996 [1996/03]
Applicant(s)	For all designated states Henkel KGaA Henkelstrasse 67 40190 Düsseldorf / DE
	[N/P]
Former [1992/29]	For all designated states Henkel Kommanditgesellschaft auf Aktien D-40191 Düsseldorf / DE
Inventor(s)	01 / ENGELSKIRCHEN, Konrad, Dr. Gonellastrasse 24 D-4005 Meerbusch 3 / DE
	02 / FISCHER, Herbert, Dr Am Nettschefeld 14 D-4000 Düsseldorf 13 / DE
	03 / HORNFECK, Klaus August-Burberg-Strasse 34 D-4020 Mettmann / DE
	04 / OBERKOBUSCH, Doris, Dr. Seidenweg 43 D-4000 Düsseldorf 13 / DE
	05 / SCHIEFFERSTEIN, Ludwig, Dr. Am Hang 15 D-4030 Ratingen 1 / DE
	[1992/29]
Application number, filing date	90912384.6	22.08.1990
	[1992/29]
	WO1990EP01396
Priority number, date	DE19893928842	31.08.1989 Original published format: DE 3928842
	[1992/29]
Filing language	DE
Procedural language	DE
Publication	Type:	A1 Application with search report
	No.:	WO9103597
	Date:	21.03.1991
	Language:	DE
	[1991/07]
	Type:	A1 Application with search report
	No.:	EP0494157
	Date:	15.07.1992
	Language:	DE
	The application published by WIPO in one of the EPO official languages on 21.03.1991 takes the place of the publication of the European patent application.
	[1992/29]
	Type:	B1 Patent specification
	No.:	EP0494157
	Date:	25.01.1995
	Language:	DE
	[1995/04]
Search report(s)	International search report - published on:	EP	21.03.1991
Classification	IPC:	D21C5/02, C08F8/32	[1992/29]
	CPC:	C08F8/32 (EP,US); D21C5/022 (EP,US); Y02W30/64 (EP,US); Y10S210/928 (EP,US)
Designated contracting states	AT, CH, DE, FR, GB, LI, SE [1993/47]
Former [1992/29]	AT, BE, CH, DE, DK, ES, FR, GB, IT, LI, NL, SE
Title	German:	VERFAHREN ZUR FLOTATION VON FÜLLSTOFFEN AUS ALTPAPIEREN IN GEGENWART VON POLYMEREN UND/ODER COPOLYMEREN	[1992/29]
	English:	FLOTATION PROCESS FOR REMOVING FILLERS FROM WASTE PAPER IN THE PRESENCE OF POLYMERS AND COPOLYMERS	[1992/29]
	French:	PROCEDE DE FLOTTATION POUR ELIMINER DES CHARGES CONTENUES DANS DES VIEUX PAPIERS EN PRESENCE DE POLYMERES ET DE COPOLYMERES	[1992/29]
Entry into regional phase	20.02.1992	National basic fee paid
	20.02.1992	Designation fee(s) paid
	20.02.1992	Examination fee paid
Examination procedure	17.11.1990	Request for preliminary examination filed International Preliminary Examining Authority: DE
	20.02.1992	Examination requested [1992/29]
	28.03.1994	Despatch of communication of intention to grant (Approval: Yes)
	12.07.1994	Communication of intention to grant the patent
	12.10.1994	Fee for grant paid
	12.10.1994	Fee for publishing/printing paid
Opposition(s)	26.10.1995	No opposition filed within time limit [1996/03]
Fees paid	Renewal fee
	28.07.1992	Renewal fee patent year 03
	23.07.1993	Renewal fee patent year 04
	16.07.1994	Renewal fee patent year 05
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