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EP0308950

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Extract from the Register of European Patents

EP About this file: EP0308950

EP0308950 - Shrinkage-reducing agent for cement [Right-click to bookmark this link]
Status	Patent revoked Status updated on 24.08.1995 Database last updated on 03.09.2024
Most recent event Tooltip	17.04.2015	Change - lapse in a contracting state	published on 20.05.2015 [2015/21]
Applicant(s)	For all designated states Wacker-Chemie GmbH Hanns-Seidel-Platz 4 D-81737 München / DE
	[N/P]
Former [1992/09]	For all designated states WACKER-CHEMIE GMBH Hanns-Seidel-Platz 4 D-81737 München / DE
Former [1989/13]	For all designated states Wacker-Chemie GmbH Hanns-Seidel-Platz 4 D-81737 München / DE
Inventor(s)	01 / Schulze, Joachim, Dr. Rudolf-Diesel-Strasse 2 D-8263 Burghausen / DE
	02 / Baumgartl, Horst Bergstrasse 1 D-8347 Kirchdorf / DE
	[1989/13]
Application number, filing date	88115639.2	23.09.1988
	[1989/13]
Priority number, date	DE19873732114	24.09.1987 Original published format: DE 3732114
	[1989/13]
Filing language	DE
Procedural language	DE
Publication	Type:	A1 Application with search report
	No.:	EP0308950
	Date:	29.03.1989
	Language:	DE
	[1989/13]
	Type:	B1 Patent specification
	No.:	EP0308950
	Date:	17.03.1993
	Language:	DE
	[1993/11]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	02.02.1989
Classification	IPC:	C04B24/02	[1989/13]
	CPC:	C04B24/02 (EP); C04B2111/34 (EP)
Designated contracting states	AT, BE, CH, DE, ES, FR, GB, IT, LI, NL, SE [1989/13]
Title	German:	Mittel zur Reduzierung des Schwundmasses von Zement	[1989/13]
	English:	Shrinkage-reducing agent for cement	[1989/13]
	French:	Agent réducteur de la contraction du ciment	[1989/13]
Examination procedure	23.09.1988	Examination requested [1989/13]
	13.03.1991	Despatch of a communication from the examining division (Time limit: M04)
	04.07.1991	Reply to a communication from the examining division
	06.09.1991	Despatch of a communication from the examining division (Time limit: M04)
	22.11.1991	Reply to a communication from the examining division
	19.12.1991	Despatch of a communication from the examining division (Time limit: M04)
	13.03.1992	Reply to a communication from the examining division
	18.05.1992	Despatch of communication of intention to grant (Approval: Yes)
	10.09.1992	Communication of intention to grant the patent
	24.09.1992	Fee for grant paid
	24.09.1992	Fee for publishing/printing paid
Opposition(s)	Opponent(s)	01 13.12.1993 10.01.1994 ADMISSIBLE Rohm and Haas Company Independence Mall West Philadelphia, PA 19105 / US Opponent's representative Angell, David Whilton ROHM AND HAAS (UK) LTD. European Operations Patent Department Lennig House 2 Mason's Avenue Croydon CR9 3NB / GB
		[N/P]
	Former [1994/06]
	Opponent(s)	01 13.12.1993 10.01.1994 ADMISSIBLE Rohm and Haas Company Independence Mall West Philadelphia, PA 19105 / US Opponent's representative Angell, David Whilton ROHM AND HAAS (UK) LTD. European Operations Patent Department Lennig House 2 Mason's Avenue Croydon, Surrey, CR9 3NB / GB
	20.01.1994	Invitation to proprietor to file observations on the notice of opposition
	01.09.1994	Reply of patent proprietor to notice(s) of opposition
	04.11.1994	Despatch of a communication from the opposition division (Time limit: M04)
	08.05.1995	Despatch of communication that the patent will be revoked
	18.05.1995	Legal effect of revocation of patent [1995/41]
Fees paid	Renewal fee
	17.09.1990	Renewal fee patent year 03
	16.09.1991	Renewal fee patent year 04
	17.09.1992	Renewal fee patent year 05
Opt-out from the exclusive Tooltip competence of the Unified Patent Court	See the Register of the Unified Patent Court for opt-out data
	Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition Tooltip	AT	23.09.1994
	GB	23.09.1994
	ES	24.09.1994
	SE	24.09.1994
	BE	30.09.1994
	CH	30.09.1994
	LI	30.09.1994
	NL	01.04.1995
	[2015/21]
Former [2004/38]	AT	23.09.1994
	GB	23.09.1994
	ES	24.09.1994
	SE	24.09.1994
	BE	30.09.1994
	CH	30.09.1994
	LI	30.09.1994
	NL	01.04.1995
Former [1996/03]	AT	23.09.1994
	GB	23.09.1994
	SE	24.09.1994
	BE	30.09.1994
	CH	30.09.1994
	LI	30.09.1994
	NL	01.04.1995
Former [1995/49]	AT	23.09.1994
	GB	23.09.1994
	BE	30.09.1994
	CH	30.09.1994
	LI	30.09.1994
	NL	01.04.1995
Former [1995/44]	AT	23.09.1994
	GB	23.09.1994
	BE	30.09.1994
	CH	30.09.1994
	LI	30.09.1994
Former [1995/42]	AT	23.09.1994
	BE	30.09.1994
	CH	30.09.1994
	LI	30.09.1994
Former [1995/40]	AT	23.09.1994
	CH	30.09.1994
	LI	30.09.1994
Former [1995/40]	AT	23.09.1994
	CH	30.09.1994
	LI	30.09.1994
Former [1995/32]	CH	30.09.1994
	LI	30.09.1994
Documents cited:	Search	[Y]JP48043014 ;
		[A]JP59128240 ;
		[A]JP59131552 ;
		[A]US1975485 (ALBERT SOMMER);
		[A]US2364555 (SCRIPTURE JR EDWARD W);
		[A]US2593008 (CHAPPELL JR FRED L);
		[Y]FR2537458 (TEROSON GMBH [DE])
		[Y] - CHEMICAL ABSTRACTS, Band 79, Nr. 8, 22 Oktober 1974, Seite 275, Ref.Nr. 96272y, Columbus, Ohio, US; & JP-A-48 043 014 (KOKAI K.K.) 22-06-1973, & JP48043014 A 00000000
		[A] - CHEMICAL ABSTRACTS, Band 101, Nr. 20, November 1984, Seite 317, Ref.Nr. 176465y, Columbus, Ohio, US; & JP-A-59 128 240 (KOKAI TOKKYO KOHO) 24-07-1984, & JP59128240 A 00000000
		[A] - CHEMICAL ABSTRACTS, Band 101, Nr. 26, Dezember 1984, Seite 250, Ref.Nr. 234683f, Columbus, Ohio, US; & JP-A-59 131 552 (KOKAI TOKKYO KOHO) 28-07-1984, & JP59131552 A 00000000

The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.

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