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Extract from the Register of European Patents

EP About this file: EP0574769

EP0574769 - Use of specific counteranions to modify the solubility of tetrazolium salts [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 28.02.1997 Database last updated on 24.08.2024
Most recent event Tooltip	28.12.2002	Lapse of the patent in a contracting state New state(s): NL	published on 12.02.2003 [2003/07]
Applicant(s)	For all designated states BAYER CORPORATION One Mellon Center 500 Grant Street Pittsburgh, PA 15219-2502 / US
	[N/P]
Former [1995/29]	For all designated states Bayer Corporation One Mellon Center 500 Grant Street Pittsburgh, PA 15219-2502 / US
Former [1995/28]	For all designated states MILES INC. One Mellon Center 500 Grant St. Pittsburgh, PA 15219-2502 / US
Former [1995/26]	For all designated states Bayer Corporation One Mellon Center 500 Grant Street Pittsburgh, PA 15219-2502 / US
Former [1993/51]	For all designated states MILES INC. One Mellon Center 500 Grant St. Pittsburgh, PA 15219-2502 / US
Inventor(s)	01 / Blatt, Joel M. 17100 Barryknoll Way Granger, IN 46530 / US
	02 / Hatch, Robert P. 1807 Filbert Way Elkhart, IN 46514 / US
	[1993/51]
Representative(s)	Dänner, Klaus, et al Bayer AG Konzernbereich RP Rechtspolitik Gewerblicher Rechtsschutz 51368 Leverkusen / DE
	[N/P]
Former [1995/26]	Dänner, Klaus, et al Bayer AG Konzernzentrale RP Patente Konzern D-51368 Leverkusen / DE
Former [1993/51]	Dänner, Klaus, Dr. Bayer AG Konzernverwaltung RP Patente Konzern D-51368 Leverkusen / DE
Application number, filing date	93108863.7	02.06.1993
	[1993/51]
Priority number, date	US19920898317	15.06.1992 Original published format: US 898317
	[1993/51]
Filing language	EN
Procedural language	EN
Publication	Type:	A1 Application with search report
	No.:	EP0574769
	Date:	22.12.1993
	Language:	EN
	[1993/51]
	Type:	B1 Patent specification
	No.:	EP0574769
	Date:	17.04.1996
	Language:	EN
	[1996/16]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	30.09.1993
Classification	IPC:	C07D257/04, G01N33/52, C07D417/04, C07F9/6524	[1993/51]
	CPC:	C07D257/04 (EP,US); C07D417/04 (EP,US); C07D417/14 (EP,US); C07F9/11 (EP,US); C07F9/12 (EP,US)
Designated contracting states	AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LI, LU, NL, PT, SE [1993/51]
Title	German:	Verwendung spezifischer gegenanionen zum Verändern der Löslichkeit von Tetrazoliumsalzen	[1993/51]
	English:	Use of specific counteranions to modify the solubility of tetrazolium salts	[1993/51]
	French:	Utilisation de contre-ions spécifiques pour modifier la solubilité de sels de tetrazolium	[1993/51]
Examination procedure	09.06.1994	Examination requested [1994/32]
	08.09.1994	Despatch of a communication from the examining division (Time limit: M04)
	19.12.1994	Reply to a communication from the examining division
	09.02.1995	Despatch of a communication from the examining division (Time limit: M04)
	08.06.1995	Reply to a communication from the examining division
	28.06.1995	Despatch of communication of intention to grant (Approval: Yes)
	17.10.1995	Communication of intention to grant the patent
	08.01.1996	Fee for grant paid
	08.01.1996	Fee for publishing/printing paid
Opposition(s)	18.01.1997	No opposition filed within time limit [1997/16]
Fees paid	Renewal fee
	26.05.1995	Renewal fee patent year 03
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	17.04.1996
	BE	17.04.1996
	CH	17.04.1996
	DK	17.04.1996
	GR	17.04.1996
	LI	17.04.1996
	NL	17.04.1996
	IE	17.06.1996
	LU	30.06.1996
	PT	17.07.1996
	SE	17.07.1996
	[2003/07]
Former [2001/05]	AT	17.04.1996
	BE	17.04.1996
	CH	17.04.1996
	DK	17.04.1996
	GR	17.04.1996
	LI	17.04.1996
	IE	17.06.1996
	LU	30.06.1996
	PT	17.07.1996
	SE	17.07.1996
Former [2000/52]	AT	17.04.1996
	BE	17.04.1996
	CH	17.04.1996
	DK	17.04.1996
	GR	17.04.1996
	LI	17.04.1996
	LU	30.06.1996
	PT	17.07.1996
	SE	17.07.1996
Former [2000/50]	AT	17.04.1996
	BE	17.04.1996
	DK	17.04.1996
	GR	17.04.1996
	LU	30.06.1996
	PT	17.07.1996
	SE	17.07.1996
	CH	22.07.1996
	LI	22.07.1996
Former [2000/05]	AT	17.04.1996
	BE	17.04.1996
	DK	17.04.1996
	GR	17.04.1996
	LU	30.06.1996
	PT	17.07.1996
	SE	17.07.1996
Former [1998/15]	AT	17.04.1996
	BE	17.04.1996
	DK	17.04.1996
	PT	17.07.1996
	SE	17.07.1996
Former [1998/14]	AT	17.04.1996
	BE	17.04.1996
	PT	17.07.1996
	SE	17.07.1996
Former [1997/20]	AT	17.04.1996
	BE	17.04.1996
	SE	17.07.1996
Former [1997/03]	AT	17.04.1996
	SE	17.07.1996
Former [1996/47]	SE	17.07.1996
Documents cited:	Search	[YD]US3655382 (BRAULT ALBERT T, et al);
		[XD]US4221864 (IYTAKA TATESHI, et al);
		[YD]US4334071 (KOTICK MICHAEL P, et al);
		[A]EP0100217 (WAKO PURE CHEM IND LTD [JP]);
		[Y]US5036000 (PALMER JOHN L [US], et al)

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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