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Extract from the Register of European Patents

EP About this file: EP0207469

EP0207469 - Flaky zirconia type fine crystals and method for producing them [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  03.02.1994
Database last updated on 24.04.2024
Most recent event   Tooltip03.02.1994No opposition filed within time limitpublished on 23.03.1994 [1994/12]
Applicant(s)For all designated states
NISSAN CHEMICAL INDUSTRIES LTD.
3-7-1, Kanda Nishiki-cho Chiyoda-ku
Tokyo / JP
[N/P]
Former [1987/02]For all designated states
NISSAN CHEMICAL INDUSTRIES LTD.
3-7-1, Kanda Nishiki-cho
Chiyoda-ku Tokyo / JP
Inventor(s)01 / Kato, Etsuro
No. 956, Aza Waseda Oaza Kumabari
Nagakute-cho Aichi-gun Aichi-ken / JP
[1987/02]
Representative(s)Ter Meer Steinmeister & Partner
Patentanwälte mbB
Nymphenburger Strasse 4
80335 München / DE
[N/P]
Former [1987/02]TER MEER - MÜLLER - STEINMEISTER & PARTNER
Mauerkircherstrasse 45
D-81679 München / DE
Application number, filing date86108797.127.06.1986
[1987/02]
Priority number, dateJP1985014723803.07.1985         Original published format: JP 14723885
JP1985027852610.12.1985         Original published format: JP 27852685
JP1985027852710.12.1985         Original published format: JP 27852785
[1987/02]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0207469
Date:07.01.1987
Language:EN
[1987/02]
Type: B1 Patent specification 
No.:EP0207469
Date:31.03.1993
Language:EN
[1993/13]
Search report(s)(Supplementary) European search report - dispatched on:EP04.11.1986
ClassificationIPC:C01G25/00
[1987/02]
CPC:
B82Y30/00 (EP,US); C01G25/02 (EP,KR,US); C10G25/003 (EP,US);
C03C3/06 (KR); C01P2002/22 (EP,US); C01P2002/72 (EP,US);
C01P2002/88 (EP,US); C01P2004/20 (EP,US); C01P2004/64 (EP,US) (-)
Designated contracting statesDE,   FR,   GB,   IT,   NL,   SE [1987/02]
TitleGerman:Schuppenartige feine Kristalle des Zirkoniumoxydtyps und Verfahren zu deren Herstellung[1987/02]
English:Flaky zirconia type fine crystals and method for producing them[1987/02]
French:Cristaux fins écailleux du type zircone et leur procédé d'obtention[1993/13]
Former [1987/02]Cristaux fins écailleux du type zircone et son procédé d'obtention
Examination procedure23.06.1987Examination requested  [1987/35]
29.12.1988Despatch of a communication from the examining division (Time limit: M06)
03.07.1989Reply to a communication from the examining division
15.02.1990Despatch of a communication from the examining division (Time limit: M05)
25.07.1990Reply to a communication from the examining division
26.02.1991Despatch of a communication from the examining division (Time limit: M06)
05.09.1991Reply to a communication from the examining division
24.09.1991Despatch of a communication from the examining division (Time limit: M04)
31.01.1992Reply to a communication from the examining division
24.06.1992Despatch of communication of intention to grant (Approval: Yes)
01.10.1992Communication of intention to grant the patent
31.12.1992Fee for grant paid
31.12.1992Fee for publishing/printing paid
Opposition(s)04.01.1994No opposition filed within time limit [1994/12]
Fees paidRenewal fee
15.06.1988Renewal fee patent year 03
15.06.1989Renewal fee patent year 04
19.06.1990Renewal fee patent year 05
18.06.1991Renewal fee patent year 06
28.09.1992Renewal fee patent year 07
Penalty fee
Additional fee for renewal fee
30.06.199207   M06   Fee paid on   28.09.1992
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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  TooltipNL31.03.1993
SE31.03.1993
[1993/51]
Former [1993/46]SE31.03.1993
Documents cited:Search[X]GB2035587  (POLAROID CORP)
 [A]  - AUSTRALIAN JOURNAL OF CHEMISTRY, vol. 20, March 1967, pages 415-428; I.J. BEAR: "Factors influencing the mode of thermal decomposition of zirconium sulphate tetrahydrate"
 [A]  - THE JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 74, April-June 1952, pages 2104,2105, Mack Printing Co.; W.S. CLABAUGH et al.: "Method for freeing zirconium of common impurities and for preparing zirconium sulfate and oxide"
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.