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Extract from the Register of European Patents

EP About this file: EP0238654

EP0238654 - REDUCTION OF NITROGEN- AND CARBON-BASED POLLUTANTS THROUGH THE USE OF UREA SOLUTIONS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  26.05.1994
Database last updated on 16.07.2024
Most recent event   Tooltip26.05.1994No opposition filed within time limitpublished on 13.07.1994 [1994/28]
Applicant(s)For all designated states
FUEL TECH, INC.
61 Taylor Reed Place
Stamford, CT 06906 / US
[1987/40]
Inventor(s)01 / BOWERS, Wayne, E.
2340-P State Road 580 No. 173
Clearwater, FL 33575 / US
[1987/40]
Representative(s)Vossius & Partner Patentanwälte Rechtsanwälte mbB
Siebertstrasse 3
81675 München / DE
[N/P]
Former [1989/46]VOSSIUS & PARTNER
Postfach 86 07 67
D-81634 München / DE
Former [1989/10]Votier, Sidney David
CARPMAELS & RANSFORD 43, Bloomsbury Square
London WC1A 2RA / GB
Former [1988/35]Hagemann, Heinrich, Dr. rer. nat., Dipl.-Chem.
Patentanwälte HAGEMANN & KEHL Postfach 86 03 29
D-81630 München / DE
Former [1988/15]Hagemann, Heinrich, Dr. rer. nat., Dipl.-Chem.
Patentanwälte Hagemann & Kehl Postfach 86 03 29
D-81630 München / DE
Former [1988/06]Schaumburg, Thoenes & Thurn
Mauerkircherstrasse 31
D-81679 München / DE
Former [1987/49]Schaumburg, Thoenes & Thurn
Mauerkircherstrasse 31
D-81679 München / DE
Former [1987/40]Lambert, Hugh Richmond
D. YOUNG & CO., 21 New Fetter Lane
London EC4A 1DA / GB
Application number, filing date86906557.303.10.1986
[1987/40]
WO1986US02099
Priority number, dateUS1985078482604.10.1985         Original published format: US 784826
[1987/40]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO8702025
Date:09.04.1987
Language:EN
[1987/08]
Type: A1 Application with search report 
No.:EP0238654
Date:30.09.1987
Language:EN
The application published by WIPO in one of the EPO official languages on 09.04.1987 takes the place of the publication of the European patent application.
[1987/40]
Type: B1 Patent specification 
No.:EP0238654
Date:21.07.1993
Language:EN
[1993/29]
Search report(s)International search report - published on:US09.04.1987
(Supplementary) European search report - dispatched on:EP27.10.1988
ClassificationIPC:C01B21/00
[1987/40]
CPC:
B01D53/56 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   LU,   NL,   SE [1987/40]
TitleGerman:VERMINDERUNG DER STICKSTOFF- UND KOHLENSTOFFHALTIGEN SCHADSTOFFE MITTELS HARNSTOFFLÖSUNGEN[1987/40]
English:REDUCTION OF NITROGEN- AND CARBON-BASED POLLUTANTS THROUGH THE USE OF UREA SOLUTIONS[1987/40]
French:DIMINUTION DES POLLUANTS A BASE D'AZOTE ET DE CARBONE PAR L'EMPLOI DE SOLUTIONS D'UREE[1987/40]
Entry into regional phase19.06.1987National basic fee paid 
19.06.1987Search fee paid 
19.06.1987Designation fee(s) paid 
19.06.1987Examination fee paid 
Examination procedure19.06.1987Examination requested  [1987/40]
02.05.1990Despatch of a communication from the examining division (Time limit: M06)
12.11.1990Reply to a communication from the examining division
19.04.1991Despatch of a communication from the examining division (Time limit: M06)
29.10.1991Reply to a communication from the examining division
02.06.1992Despatch of communication of intention to grant (Approval: No)
08.01.1993Despatch of communication of intention to grant (Approval: later approval)
15.01.1993Communication of intention to grant the patent
26.04.1993Fee for grant paid
26.04.1993Fee for publishing/printing paid
Opposition(s)22.04.1994No opposition filed within time limit [1994/28]
Fees paidRenewal fee
22.10.1988Renewal fee patent year 03
03.10.1989Renewal fee patent year 04
20.09.1990Renewal fee patent year 05
18.09.1991Renewal fee patent year 06
18.09.1992Renewal fee patent year 07
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Documents cited:Search   [ ] - No relevant documents have been disclosed.
International search[X]US4208386  (ARAND JOHN K [US], et al)
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.