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EP0414709

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Extract from the Register of European Patents

EP About this file: EP0414709

EP0414709 - SINTERED CONTACT MATERIAL BASED ON SILVER FOR USE IN POWER ENGINEERING SWITCHGEAR, IN PARTICULAR FOR CONTACT PIECES IN LOW-VOLTAGE SWITCHES [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 26.05.1994 Database last updated on 28.03.2026
Most recent event Tooltip	26.05.1994	No opposition filed within time limit	published on 13.07.1994 [1994/28]
Applicant(s)	For all designated states SIEMENS AKTIENGESELLSCHAFT Werner-von-Siemens-Str. 1 DE-80333 München / DE
	[N/P]
Former [1991/10]	For all designated states SIEMENS AKTIENGESELLSCHAFT Wittelsbacherplatz 2 D-80333 München / DE
Inventor(s)	01 / HAUFE, Wolfgang Zum Sportplatz 29 D-8521 Hessdorf / DE
	02 / GROSSE, Joachim, Dipl.-Phys. In der Reuth 126 D-8520 Erlangen / DE
	03 / ROTHKEGEL, Bernhard verstorben / DE
	[1991/10]
Application number, filing date	89904519.9	19.04.1989
	[1991/10]
	WO1989DE00239
Priority number, date	DE19883813311	20.04.1988 Original published format: DE 3813311
	[1991/10]
Filing language	DE
Procedural language	DE
Publication	Type:	A1 Application with search report
	No.:	WO8910417
	Date:	02.11.1989
	Language:	DE
	[1989/26]
	Type:	A1 Application with search report
	No.:	EP0414709
	Date:	06.03.1991
	Language:	DE
	The application published by WIPO in one of the EPO official languages on 02.11.1989 takes the place of the publication of the European patent application.
	[1991/10]
	Type:	B1 Patent specification
	No.:	EP0414709
	Date:	21.07.1993
	Language:	DE
	[1993/29]
Search report(s)	International search report - published on:	EP	02.11.1989
Classification	IPC:	C22C1/04, C22C32/00, C22C5/06, H01H1/02	[1991/10]
	CPC:	C22C32/0047 (EP,US); C22C1/0466 (EP,US); C22C1/059 (EP,US); H01H1/023 (EP,US)
Designated contracting states	AT, CH, DE, FR, GB, IT, LI, SE [1991/10]
Title	German:	SINTERKONTAKTWERKSTOFF AUF SILBERBASIS ZUR VERWENDUNG IN SCHALTGERÄTEN DER ENERGIETECHNIK, INSBESONDERE FÜR KONTAKTSTÜCKE IN NIEDERSPANNUNGSSCHALTERN	[1991/10]
	English:	SINTERED CONTACT MATERIAL BASED ON SILVER FOR USE IN POWER ENGINEERING SWITCHGEAR, IN PARTICULAR FOR CONTACT PIECES IN LOW-VOLTAGE SWITCHES	[1991/10]
	French:	MATERIAU FRITTE DE CONTACT A BASE D'ARGENT UTILISE DANS DES APPAREILS COMMUTATEURS D'ENERGIE, NOTAMMENT DES PLOTS DE CONTACT DE COMMUTATEURS A BASSE TENSION	[1991/10]
Entry into regional phase	31.07.1990	National basic fee paid
	31.07.1990	Designation fee(s) paid
	31.07.1990	Examination fee paid
Examination procedure	27.10.1989	Request for preliminary examination filed International Preliminary Examining Authority: DE
	31.07.1990	Examination requested [1991/10]
	16.11.1992	Despatch of communication of intention to grant (Approval: Yes)
	17.12.1992	Communication of intention to grant the patent
	08.03.1993	Fee for grant paid
	08.03.1993	Fee for publishing/printing paid
Opposition(s)	22.04.1994	No opposition filed within time limit [1994/28]
Fees paid	Renewal fee
	24.04.1991	Renewal fee patent year 03
	23.04.1992	Renewal fee patent year 04
	22.04.1993	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.
Cited in	International search	JP58009952
		JP62077439
		PATENT ABSTRACTS OF JAPAN, Band 007, Nr. 077 (C-159), 30. Marz 1983; & JP-A-58 009 952 (Sumitomo Denki Kogyo K.K.) 20. Januar 1983
		PATENT ABSTRACTS OF JAPAN, Band 011, Nr. 273 (C-445), 4. September 1987; & JP-A-62 077 439 (Toshiba Corp.) 9. April 1987
	Examination	JP58009952
		PATENT ABSTRACTS OF JAPAN, Band 007, Nr. 077 (C-159), 30 Mrz 1983; & JP-A-58 009 952 (Sumitomo Denki Kogyo K.K.) 20-01-1983

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.