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EP0280139

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Extract from the Register of European Patents

EP About this file: EP0280139

EP0280139 - Complex copper formazane compounds, process for their preparation and their use as dyestuffs [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 26.11.1992 Database last updated on 28.03.2026
Most recent event Tooltip	26.11.1992	No opposition filed within time limit	published on 13.01.1993 [1993/02]
Applicant(s)	For all designated states HOECHST AKTIENGESELLSCHAFT 65926 Frankfurt am Main / DE
	[N/P]
Former [1988/35]	For all designated states HOECHST AKTIENGESELLSCHAFT D-65926 Frankfurt am Main / DE
Inventor(s)	01 / Schwaiger, Günther, Dr. Johannesallee 41 D-6230 Frankfurt am Main 80 / DE
	02 / Springer, Hartmut, Dr. Am Erdbeerstein 27 D-6240 Königstein/Taunus / DE
	03 / Russ, Werner Hubert, Dr. Berliner Strasse 10 D-6238 Hofheim am Taunus / DE
	[1988/35]
Application number, filing date	88102164.6	15.02.1988
	[1988/35]
Priority number, date	DE19873705789	24.02.1987 Original published format: DE 3705789
	[1988/35]
Filing language	DE
Procedural language	DE
Publication	Type:	A2 Application without search report
	No.:	EP0280139
	Date:	31.08.1988
	Language:	DE
	[1988/35]
	Type:	A3 Search report
	No.:	EP0280139
	Date:	08.02.1989
	Language:	DE
	[1989/06]
	Type:	B1 Patent specification
	No.:	EP0280139
	Date:	22.01.1992
	Language:	DE
	[1992/04]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	22.12.1988
Classification	IPC:	C09B62/503, C09B62/04, D06P1/38	[1988/35]
	CPC:	C09B62/4407 (EP,US); C09B62/503 (KR)
Designated contracting states	BE, CH, DE, ES, FR, GB, IT, LI [1988/35]
Title	German:	Kupferkomplex-Formazan-Verbindungen, Verfahren zu ihrer Herstellung und ihre Verwendung als Farbstoffe	[1988/35]
	English:	Complex copper formazane compounds, process for their preparation and their use as dyestuffs	[1988/35]
	French:	Complexe de cuivre de composés formazane, procédé pour leur préparation et leur emploi comme colorants	[1988/35]
Examination procedure	11.04.1989	Examination requested [1989/24]
	23.05.1990	Despatch of a communication from the examining division (Time limit: M04)
	29.09.1990	Reply to a communication from the examining division
	12.04.1991	Despatch of communication of intention to grant (Approval: Yes)
	16.07.1991	Communication of intention to grant the patent
	15.10.1991	Fee for grant paid
	15.10.1991	Fee for publishing/printing paid
Opposition(s)	23.10.1992	No opposition filed within time limit [1993/02]
Fees paid	Renewal fee
	12.01.1990	Renewal fee patent year 03
	21.12.1990	Renewal fee patent year 04
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.
Documents cited:	Search	[A] JP57092054
		[A] CHEMICAL ABSTRACTS, Band 97, Nr. 22, Februar 1982, Seite 86, Ref. Nr. 183939h, Columbus, Ohio, US; & JP-A-57 092 054 (NIPPON KAYAKU CO., LTD) 08-06-1982 [A]

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