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Extract from the Register of European Patents

EP About this file: EP0256673

EP0256673 - Cathode suitable for use in electrochemical processes evolving hydrogen [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  03.12.1992
Database last updated on 10.07.2024
Most recent event   Tooltip23.11.2007Lapse of the patent in a contracting statepublished on 26.12.2007  [2007/52]
Applicant(s)For all designated states
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
New Garden House 78 Hatton Garden
London, EC1N 8JP / GB
[N/P]
Former [1988/08]For all designated states
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
New Garden House 78 Hatton Garden
London, EC1N 8JP / GB
Inventor(s)01 / Willis, Peter Michael
21 Wantage Road
Wallingford Oxfordshire, OX10 0LR / GB
02 / Phillips, Ralph Leslie
74 Windermere Road
Reading, Berkshire, RG2 7HR / GB
[1988/08]
Representative(s)Arthur, Bryan Edward, et al
Withers & Rogers Goldings House 2 Hays Lane
London SE1 2HW / GB
[N/P]
Former [1988/08]Arthur, Bryan Edward, et al
Withers & Rogers 4 Dyer's Buildings Holborn
London EC1N 2JT / GB
Application number, filing date87306296.216.07.1987
[1988/08]
Priority number, dateGB1986001732516.07.1986         Original published format: GB 8617325
[1988/08]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0256673
Date:24.02.1988
Language:EN
[1988/08]
Type: B1 Patent specification 
No.:EP0256673
Date:29.01.1992
Language:EN
[1992/05]
Search report(s)(Supplementary) European search report - dispatched on:EP08.12.1987
ClassificationIPC:C25B11/08
[1988/08]
CPC:
C25B11/095 (EP,US); C25B1/02 (KR); C25B11/097 (EP,US);
B01J23/42 (KR); B01J23/462 (KR); B01J23/50 (KR);
B01J23/52 (KR); B01J37/031 (KR) (-)
Designated contracting statesBE,   CH,   DE,   ES,   FR,   GB,   IT,   LI,   NL,   SE [1988/08]
TitleGerman:Anwendbare Kathode für elektrochemische Verfahren mit Wasserstoffentwicklung[1988/08]
English:Cathode suitable for use in electrochemical processes evolving hydrogen[1988/08]
French:Cathode utilisable dans les procédés électrochimiques avec dégagement d'hydrogène[1988/08]
Examination procedure14.07.1988Examination requested  [1988/37]
15.11.1989Despatch of a communication from the examining division (Time limit: M06)
21.05.1990Reply to a communication from the examining division
13.08.1990Despatch of a communication from the examining division (Time limit: M02)
14.08.1990Reply to a communication from the examining division
02.05.1991Despatch of communication of intention to grant (Approval: No)
27.06.1991Despatch of communication of intention to grant (Approval: later approval)
22.07.1991Communication of intention to grant the patent
22.10.1991Fee for grant paid
22.10.1991Fee for publishing/printing paid
Opposition(s)30.10.1992No opposition filed within time limit [1993/03]
Fees paidRenewal fee
13.07.1989Renewal fee patent year 03
29.06.1990Renewal fee patent year 04
28.06.1991Renewal fee patent year 05
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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  TooltipIT29.01.1992
NL29.01.1992
[2007/52]
Former [1999/42]IT29.01.1992
NL29.01.1992
Former [1992/37]NL29.01.1992
Documents cited:Search[AD]FR1152911  (LONZA AG);
 [A]DE1567718  (BARTHEL DIPL ING DIPL CHEM GUE);
 [AD]GB2074190  (JOHNSON MATTHEY CO LTD);
 [AD]EP0059854  (ASAHI GLASS CO LTD [JP])
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.