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Extract from the Register of European Patents

EP About this file: EP0089669

EP0089669 - Method of producing vitreous carbon [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.01.1987
Database last updated on 19.10.2024
Most recent event   Tooltip14.01.1987No opposition filed within time limitpublished on 04.03.1987 [1987/10]
Applicant(s)For all designated states
SIEMENS AKTIENGESELLSCHAFT
Werner-von-Siemens-Str. 1
DE-80333 München / DE
[N/P]
Former [1983/39]For all designated states
SIEMENS AKTIENGESELLSCHAFT
Wittelsbacherplatz 2
D-80333 München / DE
Inventor(s)01 / Quella, Ferdinand, Dr.
Parkstrasse 9
D-8035 Gauting / DE
02 / Schmidt, Hans-Friedrich, Dr.
Graf-Tattenbach-Weg 2
D-8196 Eurasburg / DE
[1983/39]
Application number, filing date83102797.421.03.1983
[1983/39]
Priority number, dateDE1982321087824.03.1982         Original published format: DE 3210878
[1983/39]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0089669
Date:28.09.1983
Language:DE
[1983/39]
Type: B1 Patent specification 
No.:EP0089669
Date:05.03.1986
Language:DE
[1986/10]
Search report(s)(Supplementary) European search report - dispatched on:EP25.07.1983
ClassificationIPC:C01B31/02, C04B35/52, D01F9/20
[1983/39]
CPC:
D01F9/24 (EP,US); C01B32/05 (EP,US); C04B35/524 (EP,US);
D01F11/12 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   LI,   LU,   NL,   SE [1983/39]
TitleGerman:Verfahren zum Herstellen von Glaskohlenstoff[1983/39]
English:Method of producing vitreous carbon[1983/39]
French:Procédé de fabrication de carbone vitreux[1983/39]
Examination procedure08.03.1984Examination requested  [1984/20]
12.11.1984Despatch of a communication from the examining division (Time limit: M04)
15.02.1985Reply to a communication from the examining division
15.05.1985Despatch of communication of intention to grant (Approval: )
23.08.1985Communication of intention to grant the patent
05.09.1985Fee for grant paid
05.09.1985Fee for publishing/printing paid
Opposition(s)06.12.1986No opposition filed within time limit [1987/10]
Fees paidRenewal fee
28.03.1985Renewal fee patent year 03
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Documents cited:Search[A]US4110515  (GUPTA NIRMAL K)
 [AD]  - KUNSTSTOFFE, Jahrgang 71, Heft 6, Juni 1981, Seiten 386-388, München, DE.
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.