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Extract from the Register of European Patents

EP About this file: EP0765924

EP0765924 - Azeotropic compositions of perfluoroethane and nitrous oxide [Right-click to bookmark this link]
Former [1997/14]	Azeotropic compositions of perfluoroethane and trifluoromethane, or oxide or nitrous oxide, or carbon dioxide, or fluoromethane
	[2001/17]
Status	No opposition filed within time limit Status updated on 28.03.2003 Database last updated on 27.07.2024
Most recent event Tooltip	04.01.2008	Lapse of the patent in a contracting state New state(s): IT	published on 06.02.2008 [2008/06]
Applicant(s)	For all designated states E. I. du Pont de Nemours and Company 1007 Market Street Wilmington, DE 19898 / US
	[N/P]
Former [2002/21]	For all designated states E.I. DU PONT DE NEMOURS AND COMPANY 1007 Market Street Wilmington Delaware 19898 / US
Former [1997/14]	For all designated states E.I. DU PONT DE NEMOURS AND COMPANY 1007 Market Street Wilmington Delaware 19898 / US
Inventor(s)	01 / Shiflett, Mark Brandon 609 5th Street Newark, Delaware 19711 / US
	02 / Yokozeki, Akimichi 109c Congressional Drive Greenville, Delaware 19807 / US
	03 / Minor, Barbara Haviland 233 Green Haven Drive Elkton, Maryland 21921 / US
	[1997/14]
Representative(s)	Woodcraft, David Charles, et al Brookes Batchellor 102-108 Clerkenwell Road London EC1M 5SA / GB
	[N/P]
Former [1997/14]	Woodcraft, David Charles, et al BROOKES & MARTIN High Holborn House 52/54 High Holborn London, WC1V 6SE / GB
Application number, filing date	96202837.9	28.06.1993
	[1997/14]
Priority number, date	US19920911938	10.07.1992 Original published format: US 911938
	[1997/14]
Filing language	EN
Procedural language	EN
Publication	Type:	A2 Application without search report
	No.:	EP0765924
	Date:	02.04.1997
	Language:	EN
	[1997/14]
	Type:	A3 Search report
	No.:	EP0765924
	Date:	14.05.1997
	[1997/20]
	Type:	B1 Patent specification
	No.:	EP0765924
	Date:	22.05.2002
	Language:	EN
	[2002/21]
Search report(s)	(Supplementary) European search report - dispatched on:	EP	21.03.1997
Classification	IPC:	C09K5/04, C09K3/30, C11D7/50	[1997/14]
	CPC:	C23G5/02803 (EP); C08J9/127 (EP); C08J9/143 (EP); C08J9/149 (EP); C09K3/30 (EP); C09K5/045 (EP); (+) C11D7/02 (EP); C11D7/505 (EP); C11D7/5086 (EP); C11D7/5095 (EP); C08J2203/12 (EP); C08J2203/142 (EP); C08J2207/04 (EP); C09K2205/106 (EP); C09K2205/128 (EP); C09K2205/132 (EP); C09K2205/32 (EP); C11D7/28 (EP); C11D7/32 (EP) (-)
Designated contracting states	BE, CH, DE, ES, FR, GB, IT, LI, NL [1997/14]
Title	German:	Azeotropische Zusammensetzungen auf Basis von Perfluorethan und Distickstoffmonoxid	[2001/17]
	English:	Azeotropic compositions of perfluoroethane and nitrous oxide	[2001/17]
	French:	Compositions azéotropes de perfluoréthane et d'oxyde azote	[2001/17]
	Former [1997/14]	Azeotropische Zusammensetzungen auf Basis von Perfluorethan und Trifluorethan, oder Distickstoffmonoxoid, oder Kohlendioxid, oder Fluormethan
	Former [1997/14]	Azeotropic compositions of perfluoroethane and trifluoromethane, or oxide or nitrous oxide, or carbon dioxide, or fluoromethane
	Former [1997/14]	Compositions azéotropes de perfluoroéthane et de trifluorométhane, ou d'oxyde, d'oxyde azote, de dioxyde de carbone ou de fluorométhane
Examination procedure	04.11.1996	Examination requested [1997/14]
	23.02.1999	Despatch of a communication from the examining division (Time limit: M04)
	19.06.1999	Reply to a communication from the examining division
	10.03.2000	Despatch of a communication from the examining division (Time limit: M07)
	19.09.2000	Reply to a communication from the examining division
	06.04.2001	Despatch of communication of intention to grant (Approval: No)
	08.10.2001	Despatch of communication of intention to grant (Approval: later approval)
	26.10.2001	Communication of intention to grant the patent
	28.01.2002	Fee for grant paid
	28.01.2002	Fee for publishing/printing paid
Parent application(s) Tooltip	EP93916698.9 / EP0649453
Opposition(s)	25.02.2003	No opposition filed within time limit [2003/20]
Fees paid	Renewal fee
	04.11.1996	Renewal fee patent year 03
	04.11.1996	Renewal fee patent year 04
	19.06.1997	Renewal fee patent year 05
	17.06.1998	Renewal fee patent year 06
	17.06.1999	Renewal fee patent year 07
	19.06.2000	Renewal fee patent year 08
	13.06.2001	Renewal fee patent year 09
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	BE	22.05.2002
	CH	22.05.2002
	FR	22.05.2002
	IT	22.05.2002
	LI	22.05.2002
	NL	22.05.2002
	ES	28.11.2002
	[2008/06]
Former [2006/14]	BE	22.05.2002
	CH	22.05.2002
	FR	22.05.2002
	LI	22.05.2002
	NL	22.05.2002
	ES	28.11.2002
Former [2004/04]	BE	22.05.2002
	CH	22.05.2002
	LI	22.05.2002
	NL	22.05.2002
	ES	28.11.2002
	FR	17.01.2003
Former [2003/48]	BE	22.05.2002
	CH	22.05.2002
	LI	22.05.2002
	NL	22.05.2002
	FR	17.01.2003
Former [2003/47]	CH	22.05.2002
	LI	22.05.2002
	NL	22.05.2002
	FR	17.01.2003
Former [2003/16]	CH	22.05.2002
	LI	22.05.2002
	NL	22.05.2002
Former [2003/09]	NL	22.05.2002
Documents cited:	Search	[XP]WO9307232 (DU PONT DE NEMOURS) [XP] 1-6 * abstract *;
		[A]EP0174027 (MATSUSHITA) [A] 1-6 * abstract *;
		[AP]JPH04288451 ;
		[A]JPH0375449
		[AP] - PATENT ABSTRACTS OF JAPAN, vol. 017, no. 096, Database accession no. (M - 1372), & JP04288451 A 00000000 (NIPPON KENTETSU) [AP] 1-6 * abstract *
		[A] - PATENT ABSTRACTS OF JAPAN, vol. 015, no. 239, Database accession no. (M - 1126), & JP03075449 A 00000000 (NIPPONDENSO) [A] 1-6 * abstract *

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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