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Extract from the Register of European Patents

EP About this file: EP0415037

EP0415037 - Forced draught burner for heating boiler with waste gas recirculation [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.02.1995
Database last updated on 26.06.2024
Most recent event   Tooltip04.12.2009Change - representativepublished on 06.01.2010  [2010/01]
Applicant(s)For all designated states
Viessmann, Hans, Dr.
Schlossstrasse 3
95030 Hof/Saale / DE
[N/P]
Former [1991/10]For all designated states
Viessmann, Hans, Dr.
Schlossstrasse 3
D-95030 Hof/Saale / DE
Inventor(s)01 / see applicant
...
[1991/10]
Representative(s)Wolf, Günter
An der Mainbrücke 16
63456 Hanau / DE
[N/P]
Former [2010/01]Wolf, Günter
An der Mainbrücke 16 Postfach 700245
63427 Hanau / DE
Former [1991/10]Wolf, Günter, Dipl.-Ing.
Postfach 70 02 45
D-63427 Hanau / DE
Application number, filing date90113114.410.07.1990
[1991/10]
Priority number, dateDE1989392838428.08.1989         Original published format: DE 3928384
[1991/10]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0415037
Date:06.03.1991
Language:DE
[1991/10]
Type: A3 Search report 
No.:EP0415037
Date:14.08.1991
Language:DE
[1991/33]
Type: B1 Patent specification 
No.:EP0415037
Date:20.04.1994
Language:DE
[1994/16]
Search report(s)(Supplementary) European search report - dispatched on:EP27.06.1991
ClassificationIPC:F23D11/00, F23C9/00
[1991/10]
CPC:
F23C9/00 (EP,US); F23D11/001 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1991/10]
TitleGerman:Gebläsebrenner für Heizkessel mit Abgasrückführung[1991/10]
English:Forced draught burner for heating boiler with waste gas recirculation[1991/10]
French:Brûleur à air soufflé pour chaudière de chauffage avec recyclage des fumées[1991/10]
Examination procedure25.10.1991Examination requested  [1991/52]
18.01.1993Despatch of a communication from the examining division (Time limit: M04)
04.03.1993Reply to a communication from the examining division
02.09.1993Despatch of communication of intention to grant (Approval: Yes)
21.10.1993Communication of intention to grant the patent
23.11.1993Fee for grant paid
23.11.1993Fee for publishing/printing paid
Opposition(s)21.01.1995No opposition filed within time limit [1995/15]
Fees paidRenewal fee
15.07.1992Renewal fee patent year 03
09.07.1993Renewal fee patent year 04
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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  TooltipGR20.04.1994
SE20.04.1994
LU31.07.1994
[2002/23]
Former [2000/04]GR20.04.1994
LU31.07.1994
Documents cited:Search[A]DE1551733  (SCHWARZE ERHARD, et al);
 [A]FR2208504  (KABOFIRE SA [FR]);
 [A]DE2365186  (ELCO OELBRENNERWERK AG);
 [APD]DE3820671  (VIESSMANN WERKE KG [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.