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Extract from the Register of European Patents

EP About this file: EP0389009

EP0389009 - Method for determining a leak in a breast wall of a regenerative heat recuperator [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  16.04.1994
Database last updated on 03.10.2024
Most recent event   Tooltip16.04.1994No opposition filed within time limitpublished on 08.06.1994 [1994/23]
Applicant(s)For all designated states
HOOGOVENS GROEP B.V.
P.O. Box 10.000
NL-1970 CA IJmuiden / NL
[1990/39]
Inventor(s)01 / Praat, Cornelis Nicolaas Antonius
Zuidkerkenlaan 8
NL-1906 AC Limmen / NL
02 / Veld, Lambertus
Koggewaard 37
NL-1824 GL Alkmaar / NL
[1990/39]
Representative(s)Wentzel, Hendrik Cornelis, et al
Hoogovens Corporate Services BV, Industrial Property Department, P.O. Box 10000
1970 CA IJmuiden / NL
[N/P]
Former [1990/39]Wentzel, Hendrik Cornelis, et al
Hoogovens Groep B.V. P.O. Box 10.000
NL-1970 CA IJmuiden / NL
Application number, filing date90200180.925.01.1990
[1990/39]
Priority number, dateNL1989000031808.02.1989         Original published format: NL 8900318
[1990/39]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0389009
Date:26.09.1990
Language:EN
[1990/39]
Type: A3 Search report 
No.:EP0389009
Date:28.11.1990
Language:EN
[1990/48]
Type: B1 Patent specification 
No.:EP0389009
Date:16.06.1993
Language:EN
[1993/24]
Search report(s)(Supplementary) European search report - dispatched on:EP10.10.1990
ClassificationIPC:C21B9/06, G01M3/22
[1990/39]
CPC:
G01M3/228 (EP,US); C21B9/06 (EP,US)
Designated contracting statesBE,   DE,   ES,   GB,   IT,   LU,   NL [1990/39]
TitleGerman:Verfahren zur Leckprüfung der Zwischenausmauerung eines Regenerativerhitzers[1990/39]
English:Method for determining a leak in a breast wall of a regenerative heat recuperator[1990/39]
French:Procédé pour déterminer une fuite dans la paroi intérieure d'un réchauffeur à récupération[1990/39]
Examination procedure25.01.1990Examination requested  [1991/05]
02.12.1992Despatch of communication of intention to grant (Approval: Yes)
15.12.1992Communication of intention to grant the patent
29.12.1992Fee for grant paid
29.12.1992Fee for publishing/printing paid
Opposition(s)17.03.1994No opposition filed within time limit [1994/23]
Fees paidRenewal fee
10.12.1991Renewal fee patent year 03
16.12.1992Renewal fee patent year 04
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Documents cited:Search[A]EP0184521  (ELECTRICITE DE FRANCE [FR]);
 [A]US3522008  (DEFABAUGH CHARLES E, et al);
 [A]US3087064  (CURTICE JAY S, et al)
 [A]  - STAHL UND EISEN, vol. 106, no. 18, 8th September 1986, pages 75-80, Düsseldorf, DE; H. KREIMES et al.: "Ausbrandverbesserung für keramische Winderhitzerbrenner"
Examination   - STAHL UND EISEN, vol. 106, no. 18, 08 September 1986, Seiten 75-80, Düsseldorf, DE; H.KREIMES et al.: "Ausbrandverbesserung für keramische Winderhitzerbrenner"
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.