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Extract from the Register of European Patents

EP About this file: EP0507287

EP0507287 - Processes for preparing hydrogen gas and determining ratio of masses between hydrogen isotopes therein [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  04.10.1996
Database last updated on 14.09.2024
Most recent event   Tooltip04.10.1996No opposition filed within time limitpublished on 20.11.1996 [1996/47]
Applicant(s)For all designated states
MITSUBISHI MATERIALS CORPORATION
6-1, Otemachi 1-chome
Chiyoda-ku
Tokyo / JP
[N/P]
Former [1992/41]For all designated states
MITSUBISHI MATERIALS CORPORATION
6-1, Otemachi 1-chome
Chiyoda-ku Tokyo / JP
Inventor(s)01 / Ueda, Akira, c/o Chuo-Kenkyusho
Mitsubishi Materials Corp., 1-297, Kitabukuro-cho
Omiya-shi, Saitama-ken / JP
02 / Kubota, Yasuhiro, c/o Chuo-Kenkyusho
Mitsubishi Materials Corp., 1-297, Kitabukuro-cho
Omiya-shi, Saitama-ken / JP
03 / Araki, Tsutomu, c/o Naoshima-Seirensho
Mitsubishi Materials Corp., 4049-1, Naoshima-cho
Kagawa-gun, Kagawa-ken / JP
[1992/41]
Representative(s)Hrabal, Ulrich, et al
Gille Hrabal Struck Neidlein Prop Roos Brucknerstrasse 20
40593 Düsseldorf / DE
[N/P]
Former [1996/33]Hrabal, Ulrich, Dr., et al
Türk, Gille, Hrabal, Leifert Brucknerstrasse 20
40593 Düsseldorf / DE
Former [1992/41]Türk, Dietmar, Dr. rer. nat.
Türk, Gille, Hrabal, Leifert Patentanwälte Brucknerstrasse 20
D-40593 Düsseldorf / DE
Application number, filing date92105643.802.04.1992
[1992/41]
Priority number, dateJP1991007191804.04.1991         Original published format: JP 7191891
JP1991008020612.04.1991         Original published format: JP 8020691
[1992/41]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0507287
Date:07.10.1992
Language:EN
[1992/41]
Type: A3 Search report 
No.:EP0507287
Date:03.03.1993
Language:EN
[1993/09]
Type: B1 Patent specification 
No.:EP0507287
Date:29.11.1995
Language:EN
[1995/48]
Search report(s)(Supplementary) European search report - dispatched on:EP14.01.1993
ClassificationIPC:C01B3/08, G01N27/00, C01B3/10
[1993/09]
CPC:
C01B4/00 (EP,US); C01B3/06 (EP,US); H01J49/04 (EP,US);
Y02E60/36 (EP,US)
Former IPC [1992/41]C01B3/08, G01N27/00
Designated contracting statesDE,   FR,   GB [1992/41]
TitleGerman:Verfahren zur Herstellung von Wasserstoffgas und Verfahren zum Bestimmen des Massenverhältnisses zwischen den Wasserstoffisotopen[1992/41]
English:Processes for preparing hydrogen gas and determining ratio of masses between hydrogen isotopes therein[1992/41]
French:Procédé de préparation de gaz hydrogène et procédé pour déterminer les rapports massiques entre les différents isotopes de l'hydrogène[1992/41]
Examination procedure08.05.1993Examination requested  [1993/27]
07.10.1993Despatch of a communication from the examining division (Time limit: M04)
03.02.1994Reply to a communication from the examining division
07.06.1994Despatch of a communication from the examining division (Time limit: M02)
28.07.1994Reply to a communication from the examining division
30.01.1995Despatch of communication of intention to grant (Approval: No)
29.05.1995Despatch of communication of intention to grant (Approval: later approval)
02.06.1995Communication of intention to grant the patent
30.08.1995Fee for grant paid
30.08.1995Fee for publishing/printing paid
Opposition(s)30.08.1996No opposition filed within time limit [1996/47]
Fees paidRenewal fee
23.04.1994Renewal fee patent year 03
22.04.1995Renewal fee patent year 04
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Documents cited:Search[A]  - ANAL. CHEM. vol. 54, 1982, pages 993 - 995 COLEMAN ET AL 'reduction of water with zinc for hydrogen isotope analysis'
 [A]  - ANAL. CHEM. vol. 57, no. 7, 1985, pages 1437 - 1440 KENDALL ET AL 'Multisample conversion of water to hydrogen by zinc for stable isotope determination'
 [AD]  - ANAL. CHEM. vol. 24, 1952, pages 1356 - 1357 BIGELEISEN ET AL 'Conversion of hydrogenic materialsto hydrogen for isotopic analysis'
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.