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Extract from the Register of European Patents

EP About this file: EP0670295

EP0670295 - PROCESS FOR PRODUCING 1,1,1,4,4,4-HEXAFLUORO-2-BUTENE AND 1,1,1,4,4,4,-HEXAFLUOROBUTANE [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  04.06.1999
Database last updated on 05.08.2024
Most recent event   Tooltip04.06.1999No opposition filed within time limitpublished on 21.07.1999 [1999/29]
Applicant(s)For all designated states
DAIKIN INDUSTRIES, LIMITED
Umeda Center Building
4-12, Nakazaki-nishi 2-chome
Kita-ku
Osaka-shi
Osaka 530 / JP
[N/P]
Former [1995/36]For all designated states
DAIKIN INDUSTRIES, LIMITED
Umeda Center Building, 4-12, Nakazaki-nishi 2-chome Kita-ku
Osaka-shi Osaka 530 / JP
Inventor(s)01 / AOYAMA, Hirokazu, Yodogawa Works of
Daikin Industries Ltd., 1-1, Nishihitotsuya
Settsu-shi, Osaka 566 / JP
[1995/36]
Representative(s)Hansen, Bernd, et al
Hoffmann Eitle Patent- und Rechtsanwälte Arabellastrasse 4
81925 München / DE
[N/P]
Former [1995/36]Hansen, Bernd, Dr. Dipl.-Chem., et al
Hoffmann, Eitle & Partner, Patentanwälte, Arabellastrasse 4
D-81925 München / DE
Application number, filing date94900280.218.11.1993
[1995/36]
WO1993JP01690
Priority number, dateJP1992033531520.11.1992         Original published format: JP 33531592
[1995/36]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9412454
Date:09.06.1994
Language:EN
[1994/13]
Type: A1 Application with search report 
No.:EP0670295
Date:06.09.1995
Language:EN
The application published by WIPO in one of the EPO official languages on 09.06.1994 takes the place of the publication of the European patent application.
[1995/36]
Type: B1 Patent specification 
No.:EP0670295
Date:29.07.1998
Language:EN
[1998/31]
Search report(s)International search report - published on:JP09.06.1994
(Supplementary) European search report - dispatched on:EP14.11.1995
ClassificationIPC:C07C21/18, C07C17/26, C07C19/08, C07C17/00
[1995/36]
CPC:
C07C19/08 (EP,US); C07C17/263 (EP,US); C07C17/269 (EP,US);
C07C17/354 (EP,US)
C-Set:
C07C17/263, C07C21/18 (EP,US);
C07C17/269, C07C21/18 (US,EP);
C07C17/354, C07C19/08 (US,EP)
Designated contracting statesDE,   FR,   GB,   IT [1995/36]
TitleGerman:VERFAHREN ZUR HERSTELLUNG VON 1,1,1,4,4,4-HEXAFLUORO-2-BUTEN UND 1,1,1,4,4,4-HEXAFLUOROBUTAN[1995/36]
English:PROCESS FOR PRODUCING 1,1,1,4,4,4-HEXAFLUORO-2-BUTENE AND 1,1,1,4,4,4,-HEXAFLUOROBUTANE[1995/36]
French:PROCEDE DE PRODUCTION DE 1,1,1,4,4,4-HEXAFLUORO-2-BUTENE ET DE 1,1,1,4,4,4-HEXAFLUOROBUTANE[1995/36]
Entry into regional phase19.05.1995Translation filed 
19.05.1995National basic fee paid 
19.05.1995Search fee paid 
19.05.1995Designation fee(s) paid 
19.05.1995Examination fee paid 
Examination procedure13.06.1994Request for preliminary examination filed
International Preliminary Examining Authority: JP
19.05.1995Examination requested  [1995/36]
30.01.1997Despatch of a communication from the examining division (Time limit: M04)
24.04.1997Reply to a communication from the examining division
29.08.1997Despatch of communication of intention to grant (Approval: Yes)
16.01.1998Communication of intention to grant the patent
16.04.1998Fee for grant paid
16.04.1998Fee for publishing/printing paid
Opposition(s)30.04.1999No opposition filed within time limit [1999/29]
Fees paidRenewal fee
28.11.1995Renewal fee patent year 03
29.11.1996Renewal fee patent year 04
28.11.1997Renewal fee patent year 05
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Documents cited:Search[X]  - R.N.HASZELDINE, "The addition of free radicals to unsaturated systems.Part I.The direction of radical addition to 3:3:3-trifluoropropene", JOURNAL OF THE CHEMICAL SOCIETY, LETCHWORTH GB, pages 2504 - 2513 [X] 5 *page 2511,lines19-21;page 2512 lines 29-33*
International searchJPH04264040  [ ] (DAIKIN IND LTD);
 JPS58174334  [ ] (UGINE KUHLMANN);
 JPH01146831  [ ] (BAYER AG)
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.