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Extract from the Register of European Patents

EP About this file: EP0325436

EP0325436 - High-purity magnesia sintered body and process for preparation thereof [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  16.06.1993
Database last updated on 19.07.2024
Most recent event   Tooltip16.06.1993Application deemed to be withdrawnpublished on 04.08.1993 [1993/31]
Applicant(s)For all designated states
Ube Industries, Ltd.
12-32, Nishihonmachi 1-chome
Ube-shi
Yamaguchi-ken 755-0052 / JP
[N/P]
Former [1989/30]For all designated states
UBE INDUSTRIES, LTD.
12-32, Nishihonmachi 1-chome
Ube-shi, Yamaguchi-ken 755 / JP
Inventor(s)01 / Morita, Mitsuhiko
Ube Industries Ltd 12-32 Nishihonmachi 1-chome
Ube-shi Yamaguchi / JP
02 / Yoshimoto, Yoshio
Ube Industries Ltd 12-32 Nishihonmachi 1-chome
Ube-shi Yamaguchi / JP
03 / Toda, Yasuhiko
Ube Industries Ltd 12-32 Nishihonmachi 1-chome
Ube-shi Yamaguchi / JP
[1989/30]
Representative(s)Adams, William Gordon, et al
RAWORTH, MOSS & COOK 36 Sydenham Road Croydon
Surrey CR0 2EF / GB
[N/P]
Former [1991/27]Adams, William Gordon, et al
RAWORTH, MOSS & COOK 36 Sydenham Road
Croydon Surrey CR0 2EF / GB
Former [1989/30]Fisher, Bernard
Raworth, Moss & Cook 36 Sydenham Road
Croydon Surrey CR0 2EF / GB
Application number, filing date89300463.018.01.1989
[1989/30]
Priority number, dateJP1988001058122.01.1988         Original published format: JP 1058188
[1989/30]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0325436
Date:26.07.1989
Language:EN
[1989/30]
Type: A3 Search report 
No.:EP0325436
Date:09.05.1990
Language:EN
[1990/19]
Search report(s)(Supplementary) European search report - dispatched on:EP22.03.1990
ClassificationIPC:C04B35/04, C01F5/04
[1989/30]
CPC:
C01F5/04 (EP); C04B35/053 (EP); C01P2006/12 (EP);
C01P2006/80 (EP)
Designated contracting statesDE,   FR,   GB [1989/30]
TitleGerman:Gesinterter Körper aus hochreinem Magnesiumoxid und Verfahren zu seiner Herstellung[1989/30]
English:High-purity magnesia sintered body and process for preparation thereof[1989/30]
French:Corps fritté en magnésie de haute pureté et son procédé de préparation[1989/30]
File destroyed:12.06.1999
Examination procedure28.01.1989Examination requested  [1989/30]
13.12.1991Despatch of a communication from the examining division (Time limit: M06)
15.06.1992Reply to a communication from the examining division
11.09.1992Despatch of a communication from the examining division (Time limit: M04)
22.01.1993Application deemed to be withdrawn, date of legal effect  [1993/31]
02.03.1993Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1993/31]
Fees paidRenewal fee
18.12.1990Renewal fee patent year 03
20.01.1992Renewal fee patent year 04
Penalty fee
Additional fee for renewal fee
31.01.199305   M06   Not yet paid
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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.
Documents cited:Search[Y]CZ139208
 [X]  - CHEMICAL ABSTRACTS, vol. 102, no. 26, page 263, 1st July 1985, abstract no. 224858y, Columbus, Ohio, US
 [Y]  - CHEMICAL ABSTRACTS, vol. 76, no. 14, page 123, 3rd April 1972, abstract no. 74379w, Columbus, Ohio, US; & CZ-A-139 208 (N. HORACEK et al.), & CZ139208 A 00000000
 [X]  - ADVANCES IN CERAMICS, vol. 21: "Ceramic Powder Science", 1987, pages 271-277; A. NISHIDA et al.: "Properties of ultrafine magnesium oxide powders prepared by vapor-phase oxidation", & CHEMICAL ABSTRACTS, vol. 108, no. 20, page 305, abstract no. 172265e
 [A]  - JOURNAL OF MATERIALS SCIENCE, vol. 21, no. 4, April 1986, pages 1429-1435; "Sinterability of various high-purity magnesium oxide powders"
 [A]  - CHEMICAL ABSTRACTS, vol. 65, no. 10, 1966, abstract no. 14900d, Columbus, Ohio, US
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.