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Extract from the Register of European Patents

EP About this file: EP0077926

EP0077926 - Process to suppress surface deposits during salt bath nitriding of structural parts [Right-click to bookmark this link]
Former [1983/18]Salt bath for nitriding iron workpieces
[1985/49]
StatusNo opposition filed within time limit
Status updated on  07.10.1986
Database last updated on 03.10.2024
Most recent event   Tooltip07.10.1986No opposition filed within time limitpublished on 26.11.1986 [1986/48]
Applicant(s)For all designated states
Degussa GmbH
Weissfrauenstrasse 9
60311 Frankfurt / DE
[N/P]
Former [1983/18]For all designated states
Degussa Aktiengesellschaft
Weissfrauenstrasse 9
D-60311 Frankfurt / DE
Inventor(s)01 / Müller, Johannes, Dr.
Reichsforststrasse 8
D-6000 Frankfurt am Main / DE
02 / Kunst, Helmut, Dr.
Nordring 42
D-6458 Rodenbach I / DE
03 / Scondo, Christian
Grünaustrasse 9
D-6454 Grossauheim / DE
[1983/18]
Application number, filing date82108892.925.09.1982
[1983/18]
Priority number, dateDE1981314231824.10.1981         Original published format: DE 3142318
[1983/18]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0077926
Date:04.05.1983
Language:DE
[1983/18]
Type: B1 Patent specification 
No.:EP0077926
Date:04.12.1985
Language:DE
[1985/49]
Search report(s)(Supplementary) European search report - dispatched on:EP10.01.1983
ClassificationIPC:C23C8/50
[1985/49]
CPC:
C23C8/50 (EP,US)
Former IPC [1983/18]C23C9/14
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1983/18]
TitleGerman:Verfahren zum Unterdrücken on Oberflächenbelägen beim Salzbadnitrieren von Bauteilen[1985/49]
English:Process to suppress surface deposits during salt bath nitriding of structural parts[1985/49]
French:Procédé à supprimer des couches sur la surface de pièces finales pendant la nitruration dans un bain de sel[1985/49]
Former [1983/18]Salzbad zum Nitrieren von Eisenwerkstoffen
Former [1983/18]Salt bath for nitriding iron workpieces
Former [1983/18]Bain de sel pour la nitruration d'articles en fer
Examination procedure25.09.1982Examination requested  [1983/18]
05.06.1984Despatch of a communication from the examining division (Time limit: M04)
29.09.1984Reply to a communication from the examining division
23.10.1984Despatch of a communication from the examining division (Time limit: M02)
06.11.1984Reply to a communication from the examining division
30.01.1985Despatch of communication of intention to grant (Approval: )
28.02.1985Communication of intention to grant the patent
08.05.1985Fee for grant paid
08.05.1985Fee for publishing/printing paid
Opposition(s)05.09.1986No opposition filed within time limit [1986/48]
Fees paidRenewal fee
03.09.1984Renewal fee patent year 03
29.08.1985Renewal fee patent year 04
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Documents cited:Search[X]CH359339  (DEGUSSA [DE]);
 [Y]DE1237872  (DEGUSSA)
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.