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Extract from the Register of European Patents

EP About this file: EP0875284

EP0875284 - Method of producing hydrogen using solid electrolyte membrane [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  27.12.2002
Database last updated on 14.06.2024
Most recent event   Tooltip04.02.2003Change - oral proceedings 
Applicant(s)For all designated states
PRAXAIR TECHNOLOGY, INC.
39 Old Ridgebury Road
Danbury, CT 06810-5113 / US
[1998/45]
Inventor(s)01 / Keskar, Nitin Ramesh
138 Spicer Creek Run, Atp. 11
Grand Island, New York 14072 / US
02 / Prasad, Ravi
12 Yardley Lane
East Amherst, New York 14051 / US
03 / Gottzman, Christian Friedrich
5308 Thompson Road
Clarence, New York 14031 / US
[1998/45]
Representative(s)Schwan, Gerhard
Schwan Schwan Schorer
Patentanwälte
Bauerstrasse 22
80796 München / DE
[N/P]
Former [1998/45]Schwan, Gerhard, Dipl.-Ing.
Elfenstrasse 32
81739 München / DE
Application number, filing date98107735.728.04.1998
[1998/45]
Priority number, dateUS1997084820029.04.1997         Original published format: US 848200
[1998/45]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0875284
Date:04.11.1998
Language:EN
[1998/45]
Search report(s)(Supplementary) European search report - dispatched on:EP09.09.1998
ClassificationIPC:B01D53/32, B01D53/22, C01B13/02, C01B3/36
[1998/45]
CPC:
C01B3/36 (EP,US); B01D53/228 (EP,US); B01D53/32 (EP,US);
C01B13/0251 (EP,US); C01B13/0255 (EP,US); B01D2257/104 (EP,US);
C01B2210/0046 (EP,US) (-)
Designated contracting statesDE,   ES,   FR,   GB,   IT,   NL [1999/28]
Former [1998/45]AT,  BE,  CH,  CY,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Verfahren zur Herstellung von Wasserstoff unter der Verwendung einer festen elekrolytischen Membran[1998/45]
English:Method of producing hydrogen using solid electrolyte membrane[1998/45]
French:Procédé pour la production de l'hydrogen utilisant une membrane solide électrolytique[1998/45]
Examination procedure12.11.1998Examination requested  [1999/01]
07.06.2001Despatch of a communication from the examining division (Time limit: M08)
14.02.2002Reply to a communication from the examining division
11.12.2002Application withdrawn by applicant  [2003/06]
Fees paidRenewal fee
03.04.2000Renewal fee patent year 03
02.04.2001Renewal fee patent year 04
22.04.2002Renewal fee patent year 05
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Documents cited:Search[A]US5160713  (MAZANEC TERRY J [US], et al) [A] 1-10* claims 1,7,9 *;
 [DA]US5306411  (MAZANEC TERRY J [US], et al) [DA] 1-10 * column 6, line 36 - column 7, line 16 *;
 [X]US5599383  (DYER PAUL N [US], et al) [X] 1-10 * column 3, line 63 - column 4, line 3 * * column 10, line 61 - column 10, line 65 *
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.