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Extract from the Register of European Patents

EP About this file: EP0302856

EP0302856 - IMPROVEMENTS IN FERRORESONANT CONSTANT-VOLTAGE TRANSFORMERS [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 19.03.1992 Database last updated on 06.07.2024
Most recent event Tooltip	23.11.2007	Lapse of the patent in a contracting state	published on 26.12.2007 [2007/52]
Applicant(s)	For all designated states ELEKTRENE S.R.L. Via A. Sforza, 87 I-20141 Milan / IT
	[1989/07]
Inventor(s)	01 / PETROGALLI, Lorenzo Via Pestalozza, 14 I-20131 Milan / IT
	[1989/07]
Representative(s)	Dr. Ing. A. Racheli & C. S.r.l. Viale San Michele del Carso, 4 20144 Milano / IT
	[N/P]
Former [1989/07]	Dr. Ing. A. Racheli & C. S.r.l. Viale San Michele del Carso, 4 I-20144 Milano / IT
Application number, filing date	87901457.9	24.02.1987
	[1989/07]
	WO1987EP00101
Priority number, date	IT19860019600	28.02.1986 Original published format: IT 1960086
	[1989/07]
Filing language	EN
Procedural language	EN
Publication	Type:	A1 Application with search report
	No.:	WO8705412
	Date:	11.09.1987
	Language:	EN
	[1987/20]
	Type:	A1 Application with search report
	No.:	EP0302856
	Date:	15.02.1989
	Language:	EN
	The application published by WIPO in one of the EPO official languages on 11.09.1987 takes the place of the publication of the European patent application.
	[1989/07]
	Type:	B1 Patent specification
	No.:	EP0302856
	Date:	15.05.1991
	Language:	EN
	[1991/20]
Search report(s)	International search report - published on:	EP	11.09.1987
Classification	IPC:	G05F3/06, H01F31/00	[1989/07]
	CPC:	G05F3/06 (EP); H01F30/10 (EP)
Designated contracting states	AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE [1989/07]
Title	German:	FERRORESONANTE TRANSFORMATOREN MIT KONSTANTER SPANNUNG	[1989/07]
	English:	IMPROVEMENTS IN FERRORESONANT CONSTANT-VOLTAGE TRANSFORMERS	[1989/07]
	French:	PERFECTIONNEMENT DE TRANSFORMATEURS FERRORESONANTS A TENSION CONSTANTE	[1989/07]
File destroyed:	03.03.2001
Entry into regional phase	06.07.1988	National basic fee paid
	06.07.1988	Designation fee(s) paid
	06.07.1988	Examination fee paid
Examination procedure	21.09.1987	Request for preliminary examination filed International Preliminary Examining Authority: BE
	06.07.1988	Examination requested [1989/07]
	11.06.1990	Despatch of communication of intention to grant (Approval: Yes)
	19.10.1990	Communication of intention to grant the patent
	15.01.1991	Fee for grant paid
	15.01.1991	Fee for publishing/printing paid
Opposition(s)	18.02.1992	No opposition filed within time limit [1992/19]
Fees paid	Renewal fee
	06.03.1989	Renewal fee patent year 03
	19.02.1990	Renewal fee patent year 04
	11.02.1991	Renewal fee patent year 05
	Penalty fee
	Additional fee for renewal fee
	01.03.1989	03 M06 Fee paid on 06.03.1989
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	AT	15.05.1991
	BE	15.05.1991
	CH	15.05.1991
	IT	15.05.1991
	LI	15.05.1991
	NL	15.05.1991
	SE	15.05.1991
	FR	04.10.1991
	[2007/52]
Former [1999/42]	AT	15.05.1991
	BE	15.05.1991
	CH	15.05.1991
	IT	15.05.1991
	LI	15.05.1991
	NL	15.05.1991
	SE	15.05.1991
	FR	04.10.1991
Former [1992/30]	AT	15.05.1991
	BE	15.05.1991
	CH	15.05.1991
	LI	15.05.1991
	NL	15.05.1991
	SE	15.05.1991
	FR	04.10.1991
Former [1992/25]	AT	15.05.1991
	CH	15.05.1991
	LI	15.05.1991
	NL	15.05.1991
	SE	15.05.1991
	FR	04.10.1991
Former [1992/05]	AT	15.05.1991
	CH	15.05.1991
	LI	15.05.1991
	NL	15.05.1991
	SE	15.05.1991
Former [1992/04]	AT	15.05.1991
	NL	15.05.1991
	SE	15.05.1991
Former [1992/03]	AT	15.05.1991
	SE	15.05.1991
Former [1991/51]	SE	15.05.1991
Cited in	International search	GB1050605 [ ];
		GB1020093 [ ] (FRAKO KONDENSATOREN UND APP BA);
		US3708744 [ ] (STEPHENS D, et al);
		FR2140038 [ ] (PARLOUR WILLIAM LTD)

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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