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Extract from the Register of European Patents

EP About this file: EP0318886

EP0318886 - Process for the electrolytic stripping of a protective coating, having a high content of chromium and nickel and/or cobalt, from the substrate of an object made of a superalloy [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  27.05.1993
Database last updated on 11.09.2024
Most recent event   Tooltip27.05.1993No opposition filed within time limitpublished on 14.07.1993 [1993/28]
Applicant(s)For all designated states
BBC Brown Boveri AG
Haselstrasse
CH-5401 Baden / CH
[1989/23]
Inventor(s)01 / Sova, Vladimir
Schürmattstrasse 17
CH-5453 Remetschwil / CH
[1989/23]
Application number, filing date88119777.628.11.1988
[1989/23]
Priority number, dateCH1987000467301.12.1987         Original published format: CH 467387
[1989/23]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0318886
Date:07.06.1989
Language:DE
[1989/23]
Type: B1 Patent specification 
No.:EP0318886
Date:22.07.1992
Language:DE
[1992/30]
Search report(s)(Supplementary) European search report - dispatched on:EP15.03.1989
ClassificationIPC:C25F5/00, C23F1/44
[1989/23]
CPC:
C25F5/00 (EP,US); C23F1/44 (EP,US)
Designated contracting statesCH,   DE,   LI,   NL [1989/23]
TitleGerman:Verfahren zum elektrolytischen Ablösen einer einen hohen Cr- und Ni- und/oder Co-Gehalt aufweisenden Oberflächenschutzschicht vom Grundkörper eines aus einer Superlegierung bestehenden Bauteils[1989/23]
English:Process for the electrolytic stripping of a protective coating, having a high content of chromium and nickel and/or cobalt, from the substrate of an object made of a superalloy[1989/23]
French:Procédé de décapage électrolytique d'une couche protectrice, ayant une haute teneur en chromium et nickel et/ou cobalt, recouvrant un substrat d'un objet fait en superalliage[1989/23]
Examination procedure16.11.1989Examination requested  [1990/02]
26.06.1991Despatch of a communication from the examining division (Time limit: M04)
24.10.1991Reply to a communication from the examining division
05.12.1991Despatch of communication of intention to grant (Approval: Yes)
10.01.1992Communication of intention to grant the patent
04.03.1992Fee for grant paid
04.03.1992Fee for publishing/printing paid
Opposition(s)23.04.1993No opposition filed within time limit [1993/28]
Fees paidRenewal fee
26.11.1990Renewal fee patent year 03
27.11.1991Renewal fee patent year 04
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Documents cited:Search[A]US3015630  (THOMPSON ROBERT E, et al);
 [A]US3819494  (FOUNTAIN L)
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.