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EP0073970

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Extract from the Register of European Patents

EP About this file: EP0073970

EP0073970 - Process for the preparation of 4-methyl-5-oxo-3-thioxo-tetrahydro-1,2,4-(2H,4H) triazines [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 10.01.1989 Database last updated on 28.03.2026
Most recent event Tooltip	10.01.1989	No opposition filed within time limit	published on 01.03.1989 [1989/09]
Applicant(s)	For all designated states BAYER AG 51368 Leverkusen / DE
	[N/P]
Former [1983/11]	For all designated states BAYER AG D-51368 Leverkusen / DE
Inventor(s)	01 / Bonse, Gerhard, Dr. Wolfskaul 3 D-5000 Köln 80 / DE
	[1983/11]
Application number, filing date	82107480.4	17.08.1982
	[1983/11]
Priority number, date	DE19813134230	29.08.1981 Original published format: DE 3134230
	[1983/11]
Filing language	DE
Procedural language	DE
Publication	Type:	A1 Application with search report
	No.:	EP0073970
	Date:	16.03.1983
	Language:	DE
	[1983/11]
	Type:	B1 Patent specification
	No.:	EP0073970
	Date:	02.03.1988
	Language:	DE
	[1988/09]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	20.12.1982
Classification	IPC:	C07D253/06, C07D405/04	[1983/11]
	CPC:	C07D253/075 (EP,US)
Designated contracting states	AT, BE, CH, DE, FR, GB, IT, LI, NL [1983/11]
Title	German:	Verfahren zur Herstellung von 4-Methyl-5-oxo-3-thioxotetrahydro-1,2,4-(2H, 4H)-triazinen	[1983/11]
	English:	Process for the preparation of 4-methyl-5-oxo-3-thioxo-tetrahydro-1,2,4-(2H,4H) triazines	[1983/11]
	French:	Procédé de préparation de 4-méthyl-5-oxo-3-thioxo-tétrahydro-1,2,4-(2H,4H)-triazines	[1983/11]
Examination procedure	17.08.1982	Examination requested [1983/11]
	13.03.1986	Despatch of a communication from the examining division (Time limit: M04)
	12.07.1986	Reply to a communication from the examining division
	05.12.1986	Despatch of a communication from the examining division (Time limit: M04)
	17.03.1987	Reply to a communication from the examining division
	14.05.1987	Despatch of communication of intention to grant (Approval: )
	24.08.1987	Communication of intention to grant the patent
	03.09.1987	Fee for grant paid
	03.09.1987	Fee for publishing/printing paid
Opposition(s)	03.12.1988	No opposition filed within time limit [1989/09]
Fees paid	Renewal fee
	17.07.1984	Renewal fee patent year 03
	27.07.1985	Renewal fee patent year 04
	25.07.1986	Renewal fee patent year 05
	14.07.1987	Renewal fee patent year 06
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