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EP0171707

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EP About this file: EP0171707

EP0171707 - Process for the fabrication of polyimide-esters of trimellitic acid [Right-click to bookmark this link]
Status	The application has been withdrawn Status updated on 03.04.1990 Database last updated on 25.09.2024
Most recent event Tooltip	07.07.2007	Change - inventor	published on 08.08.2007 [2007/32]
Applicant(s)	For all designated states BAYER AG 51368 Leverkusen / DE
	[N/P]
Former [1986/08]	For all designated states BAYER AG D-51368 Leverkusen / DE
Inventor(s)	01 / Kricheldorf, Hans Rytger, Professor Dr. Menzelstrasse 10 D-2000 Hamburg 52 / DE
	02 / Pakull, Ralf, Dipl.-Chem. Memelerstrasse 3 D-2000 Hamburg 70 / DE
	03 / Dicke, Hans-Rudolf, Dr. Bodelschwinghstrasse 16 D-4150 Krefeld / DE
	[1986/08]
Application number, filing date	85109633.9	31.07.1985
	[1986/08]
Priority number, date	DE19843429680	11.08.1984 Original published format: DE 3429680
	DE19853504481	09.02.1985 Original published format: DE 3504481
	[1986/08]
Filing language	DE
Procedural language	DE
Publication	Type:	A2 Application without search report
	No.:	EP0171707
	Date:	19.02.1986
	Language:	DE
	[1986/08]
	Type:	A3 Search report
	No.:	EP0171707
	Date:	23.03.1988
	Language:	DE
	[1988/12]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	05.02.1988
Classification	IPC:	C08G73/16	[1986/08]
	CPC:	C08G73/16 (EP,US)
Designated contracting states	DE, FR, GB, IT [1986/08]
Title	German:	Verfahren zur Herstellung von Polyimidestern der Trimellitsäure	[1986/08]
	English:	Process for the fabrication of polyimide-esters of trimellitic acid	[1986/08]
	French:	Procédé pour la fabrication de polyimide-esters de l'acide trimellitique	[1986/08]
File destroyed:	13.06.1996
Examination procedure	31.07.1985	Examination requested [1986/08]
	27.09.1989	Despatch of a communication from the examining division (Time limit: M06)
	13.03.1990	Application withdrawn by applicant [1990/21]
Fees paid	Renewal fee
	15.06.1987	Renewal fee patent year 03
	27.06.1988	Renewal fee patent year 04
	14.06.1989	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.
Documents cited:	Search	[X]JP5867725 ;
		[A]GB1093734 (HERBERTS & CO K);
		[AD]US3542731 (CULBERTSON BILLY M)
		[X] - CHEMICAL ABSTRACTS, Band 99, Nr. 22, 28. November 1983, Seite 14, Spalte 1, Zusammenfassungsnr. 176477u, Columbus, Ohio, US; & JP - A - 58 67725 (MITSUI TOATSU CHEMICALS INC) 22-04-1983, & JP5867725 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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