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Extract from the Register of European Patents

EP About this file: EP0738774

EP0738774 - Non-azeotropic blends of 1,1,1,2-tetrafluoroethane, 1,1,1-trifluoroethane and pentafluoroethane and their use as refrigerating fluids [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  22.10.1999
Database last updated on 03.08.2024
Most recent event   Tooltip22.10.1999Application deemed to be withdrawnpublished on 08.12.1999 [1999/49]
Applicant(s)For all designated states
ELF ATOCHEM S.A.
4/8, Cours Michelet, La Défense 10 92800 Puteaux
Hauts-de-Seine / FR
[N/P]
Former [1996/43]For all designated states
ELF ATOCHEM S.A.
4 & 8, Cours Michelet, La Défense 10
92800 Puteaux / FR
Inventor(s)01 / Fauvarque, Pierre
34, Rue Deparcieux
75014 Paris / FR
02 / Macaudiere, Sylvie
64, Rue de Nanterre
92600 Asnieres / FR
[1996/43]
Representative(s)Leboulenger, Jean, et al
Atofina D.C.R.D./D.P.I. 4, Cours Michelet La Défense 10
92091 Paris la Défense Cedex / FR
[N/P]
Former [1996/43]Leboulenger, Jean, et al
Elf Atochem S.A., Département Propriété Industrielle, Cedex 42 - La Défense 10
92091 Paris la Défense / FR
Application number, filing date96400690.229.03.1996
[1996/43]
Priority number, dateFR1995000472520.04.1995         Original published format: FR 9504725
[1996/43]
Filing languageFR
Procedural languageFR
PublicationType: A1 Application with search report 
No.:EP0738774
Date:23.10.1996
Language:FR
[1996/43]
Search report(s)(Supplementary) European search report - dispatched on:EP21.08.1996
ClassificationIPC:C09K5/04
[1996/43]
CPC:
C09K5/045 (EP,KR); C09K2205/22 (EP,KR); C09K2205/34 (EP,KR);
C09K2205/45 (EP,KR)
Designated contracting statesBE,   CH,   DE,   ES,   FR,   GB,   IT,   LI,   NL [1996/43]
TitleGerman:Nicht-azeotropische Mischungen von 1,1,1,2-Tetrafluorethan, 1,1,1-Trifluorethan und Pentafluorethan und ihre Anwendung als Kühlflüssigkeiten[1996/43]
English:Non-azeotropic blends of 1,1,1,2-tetrafluoroethane, 1,1,1-trifluoroethane and pentafluoroethane and their use as refrigerating fluids[1996/43]
French:Mélanges non azéotropiques de 1,1,1,2-tetrafluoroéthane, 1,1,1-trifluoroéthane et pentafluoroéthane, et leur application comme fluides frigorigènes[1996/43]
Examination procedure03.04.1996Examination requested  [1996/43]
03.12.1998Despatch of a communication from the examining division (Time limit: M06)
15.06.1999Application deemed to be withdrawn, date of legal effect  [1999/49]
14.07.1999Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1999/49]
Fees paidRenewal fee
10.03.1998Renewal fee patent year 03
11.03.1999Renewal fee patent year 04
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Documents cited:Search[X]EP0430169  (MATSUSHITA ELECTRIC IND CO LTD [JP]) [X] 1-5 * abstract *;
 [X]WO9201762  (DU PONT [US]) [X] 1-5 * abstract *;
 [X]JPH03170594
 [X]  - DATABASE WPI, 1, Derwent World Patents Index, vol. 91, no. 36, Database accession no. 91-262364, XP002011100 & JPH03170594 A 19910724 (MATSUSHITA) [X] 1-5 * 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.