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EP0097737

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Extract from the Register of European Patents

EP About this file: EP0097737

EP0097737 - Powder metallurgy process for producing parts having high strength and hardness from Si-Mn or Si-Mn-C alloyed steel [Right-click to bookmark this link]
Status	The patent has been granted Status updated on 12.09.1986 Database last updated on 11.04.2026
Most recent event Tooltip	07.07.2007	Change - inventor	published on 08.08.2007 [2007/32]
Applicant(s)	For all designated states KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH Postfach 36 40 D-76021 Karlsruhe / DE
	[1994/51]
Former [1984/02]	For all designated states KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH Postfach 36 40 D-76050 Karlsruhe / DE
Inventor(s)	01 / Thümmler, Fritz, Prof. Dr. Hohenwettersbacherstrasse 17 D-7500 Karlsruhe 4 / DE
	02 / Klein, Aloisio Eggensteinerweg D-7514 Leopoldshafen / DE
	03 / Oberacker, Rainer Friedrichstrasse 52 D-7521 Liedolsheim / DE
	[1984/02]
Application number, filing date	82110622.6	18.11.1982
	[1984/02]
Priority number, date	DE19823219324	22.05.1982 Original published format: DE 3219324
	[1984/02]
Filing language	DE
Procedural language	DE
Publication	Type:	A1 Application with search report
	No.:	EP0097737
	Date:	11.01.1984
	Language:	DE
	[1984/02]
	Type:	B1 Patent specification
	No.:	EP0097737
	Date:	29.10.1986
	Language:	DE
	[1986/44]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	28.09.1983
Classification	IPC:	C22C33/02	[1984/02]
	CPC:	C22C33/0271 (EP,US); C22C33/0207 (EP,US)
Designated contracting states	AT, DE, FR, GB, SE [1984/02]
Title	German:	Verfahren zur pulvermetallurgischen Herstellung von Formteilen hoher Festigkeit und Härte aus Si-Mn- oder Si-Mn-C-legierten Stählen	[1984/02]
	English:	Powder metallurgy process for producing parts having high strength and hardness from Si-Mn or Si-Mn-C alloyed steel	[1984/02]
	French:	Procédé de fabrication par la métallurgie des poudres de pièces en acier allié au Si-Mn ou Si-Mn-C présentant une résistance et dureté élevée	[1984/02]
Examination procedure	27.01.1984	Examination requested [1984/14]
	03.01.1985	Despatch of a communication from the examining division (Time limit: M04)
	02.05.1985	Reply to a communication from the examining division
	22.08.1985	Despatch of a communication from the examining division (Time limit: M04)
	14.11.1985	Reply to a communication from the examining division
	18.12.1985	Despatch of communication of intention to grant (Approval: )
	11.04.1986	Communication of intention to grant the patent
	11.04.1986	Fee for grant paid
	11.04.1986	Fee for publishing/printing paid
Opposition(s)	Opponent(s)	01 20.07.1987 INADMISSIBLE Höganäs AB Box 501 S-263 01 Höganäs / SE
		[1988/52]
	Former [1987/37]
	Opponent(s)	01 20.07.1987 Höganäs AB Box 501 S-263 01 Höganäs / SE Opponent's representative Berglund, Gustav Arthur AWAPATENT AB, Box 5117 S-200 71 Malmö / SE
Appeal following opposition	25.06.1988	Appeal received No. T0279/88
	09.09.1988	Statement of grounds filed
	25.01.1990	Result of appeal procedure: appeal of the opponent was rejected
Fees paid	Renewal fee
	13.10.1984	Renewal fee patent year 03
	28.12.1985	Renewal fee patent year 04
	Penalty fee
	Additional fee for renewal fee
	02.12.1985	04 M06 Fee paid on 20.02.1986
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	GB	18.11.1988
	FR	31.07.1989
	DE	01.08.1995
	AT	18.11.1995
	SE	19.11.1995
	[1998/51]
Former [1996/42]	GB	18.11.1988
	DE	01.08.1995
	AT	18.11.1995
	SE	19.11.1995
Former [1996/38]	GB	18.11.1988
	DE	01.08.1995
	SE	19.11.1995
Former [1996/01]	GB	18.11.1988
	DE	01.08.1995
Former [1989/42]	GB	18.11.1988
Cited in	Examination	3. European Powder Metallurgy Symposium 1971, Conference Suppl. Part I, S. 128, 335-361
		Metal Powder Report, Vol. 39, No. 6 June 1984, S. 335-338

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.