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Extract from the Register of European Patents

EP About this file: EP0248857

EP0248857 - PROCESS FOR THE SIMULTANEOUS DRY ABSORPTION OF S O 2 AND REDUCTION OF N O X IN FLUIDIZED BED FURNACES [Right-click to bookmark this link]
Former [1987/51]SIMULTANEOUS SO 2? AND NO X? DRY ABSORPTION, PREFERABLY DOWNSTREAM OF COAL BOILERS, IN PARTICULAR FLUIDIZED BED FURNACES AND FLUE DUST CLOUDS.
[1990/37]
StatusNo opposition filed within time limit
Status updated on  13.07.1991
Database last updated on 15.06.2024
Most recent event   Tooltip23.11.2007Lapse of the patent in a contracting state
Updated state(s): FR		published on 26.12.2007  [2007/52]
Applicant(s)For all designated states
Hölter, Heinz, Dipl.-Ing.
Beisenstrasse 39-41
D-45964 Gladbeck / DE
[1987/51]
Inventor(s)01 / IGELBÜSCHER, Heinrich
Marcq-en-Baroeul-Strasse 60
D-4390 Gladbeck / DE
02 / GRESCH, Heinrich
Franz-Lehàr-Strasse 25
D-4600 Dortmund-Wickede / DE
03 / DEWERT, Heribert
Bahnhofstrasse 23
D-4390 Gladbeck / DE
[1987/51]
Representative(s)Spalthoff, Adolf, et al
Patentanwälte, Dipl.-Ing. A. Spalthoff, Dipl.-Ing. K. Lelgemann, Postfach 34 02 20
45074 Essen / DE
[N/P]
Former [1987/51]Spalthoff, Adolf, Dipl.-Ing., et al
Patentanwälte, Dipl.-Ing. A. Spalthoff, Dipl.-Ing. K. Lelgemann, Postfach 34 02 20
D-45074 Essen / DE
Application number, filing date87900096.602.12.1986
[1987/51]
WO1986EP00698
Priority number, dateDE1985354344209.12.1985         Original published format: DE 3543442
DE1986360831513.03.1986         Original published format: DE 3608315
[1987/51]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report
No.:WO8703507
Date:18.06.1987
Language:DE
[1987/13]
Type: A1 Application with search report 
No.:EP0248857
Date:16.12.1987
Language:DE
The application published by WIPO in one of the EPO official languages on 18.06.1987 takes the place of the publication of the European patent application.
[1987/51]
Type: B1 Patent specification 
No.:EP0248857
Date:12.09.1990
Language:DE
[1990/37]
Search report(s)International search report - published on:EP18.06.1987
ClassificationIPC:B01D53/34
[1987/51]
CPC:
B01D53/60 (EP); Y02A50/20 (EP)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   LU,   NL,   SE [1987/51]
TitleGerman:VERFAHREN ZUR SIMULTANEN TROCKENABSORPTION VON S O 2 UND REDUKTION VON N O X BEI DER WIRBELSCHICHTFEUERUNG[1990/37]
English:PROCESS FOR THE SIMULTANEOUS DRY ABSORPTION OF S O 2 AND REDUCTION OF N O X IN FLUIDIZED BED FURNACES[1990/37]
French:PROCEDE D'ABSORPTION A SEC DE S O 2 ET SIMULTANEMENT DE REDUCTION DE N O X EN AVAL DE FOYERS A LIT FLUIDISE[1990/37]
Former [1987/51]SIMULTANE SO 2?- UND NO X?- TROCKENABSORPTION VORZUGSWEISE HINTER KOHLEKESSELN, INSBESONDERE WIRBELSCHICHTFEUERUNGEN UND FLUGSTAUBWOLKEN
Former [1987/51]SIMULTANEOUS SO 2? AND NO X? DRY ABSORPTION, PREFERABLY DOWNSTREAM OF COAL BOILERS, IN PARTICULAR FLUIDIZED BED FURNACES AND FLUE DUST CLOUDS.
Former [1987/51]ABSORPTION SIMULTANEE A SEC DE SO 2? ET DE NO X?, DE PREFERENCE EN AVAL DE CHAUDIERES A CHARBON, NOTAMMENT DE FOYERS A LIT FLUIDISE ET DE NUAGES DE CENDRES VOLANTES
File destroyed:15.01.2000
Entry into regional phase05.08.1987National basic fee paid 
05.08.1987Designation fee(s) paid 
20.11.1987Examination fee paid 
Examination procedure20.11.1987Examination requested  [1988/04]
06.02.1989Despatch of a communication from the examining division (Time limit: M06)
04.08.1989Reply to a communication from the examining division
16.11.1989Despatch of communication of intention to grant (Approval: Yes)
06.03.1990Communication of intention to grant the patent
29.05.1990Fee for grant paid
29.05.1990Fee for publishing/printing paid
Opposition(s)13.06.1991No opposition filed within time limit [1991/36]
Fees paidRenewal fee
07.12.1988Renewal fee patent year 03
12.12.1989Renewal fee patent year 04
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
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  TooltipBE12.09.1990
FR12.09.1990
GB12.09.1990
IT12.09.1990
NL12.09.1990
SE12.09.1990
AT02.12.1990
CH31.12.1990
LI31.12.1990
LU31.12.1990
[2006/14]
Former [1999/52]BE12.09.1990
GB12.09.1990
IT12.09.1990
NL12.09.1990
SE12.09.1990
AT02.12.1990
CH31.12.1990
LI31.12.1990
LU31.12.1990
FR01.02.1991
Former [1999/42]BE12.09.1990
GB12.09.1990
IT12.09.1990
NL12.09.1990
SE12.09.1990
AT02.12.1990
CH31.12.1990
LI31.12.1990
FR01.02.1991
Former [1992/29]BE12.09.1990
GB12.09.1990
NL12.09.1990
SE12.09.1990
AT02.12.1990
CH31.12.1990
LI31.12.1990
FR01.02.1991
Former [1992/05]BE12.09.1990
GB12.09.1990
NL12.09.1990
SE12.09.1990
CH31.12.1990
LI31.12.1990
FR01.02.1991
Former [1991/50]BE12.09.1990
GB12.09.1990
NL12.09.1990
SE12.09.1990
FR01.02.1991
Former [1991/41]BE12.09.1990
GB12.09.1990
NL12.09.1990
SE12.09.1990
Former [1991/35]BE12.09.1990
NL12.09.1990
SE12.09.1990
Former [1991/34]NL12.09.1990
SE12.09.1990
Former [1991/27]SE12.09.1990
Cited inInternational searchUS4424197  [ ] (POWELL BYRON E [US], et al);
 DE2532471  [ ] (MITSUBISHI CHEM IND);
 DE3018743  [ ] (BERGWERKSVERBAND GMBH [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.