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Extract from the Register of European Patents

EP About this file: EP0483312

EP0483312 - PROCESS FOR ELIMINATING NITRATES AND PHOSPHATES IN THE BIOLOGICAL PURIFICATION OF WASTE WATER [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  02.11.2001
Database last updated on 15.06.2024
Most recent event   Tooltip07.12.2007Lapse of the patent in a contracting state
New state(s): IT
published on 09.01.2008  [2008/02]
Applicant(s)For all designated states
UTB Buchs AG
Technikumstrasse 14
CH-9470 Buchs / CH
[1994/38]
Former [1992/19]For all designated states
UTB Umwelttechnik Buchs AG
Technikumstrasse 14
CH-9470 Buchs/SG / CH
Inventor(s)01 / BAIER, Urs, Dr.
alte Stadtergasse
CH-7320 Sargans / CH
02 / WYSS, Paul
Rosenweg 10
CH-4533 Riedholz / CH
[1992/19]
Representative(s)Riederer, Conrad A.
c/o Riederer Hasler & Partner Patentanwälte AG Elestastrasse 8 Postfach
7310 Bad Ragaz / CH
[N/P]
Former [1992/19]Riederer, Conrad A., Dr.
Bahnhofstrasse 10
CH-7310 Bad Ragaz / CH
Application number, filing date91908223.016.05.1991
[1992/19]
WO1991CH00116
Priority number, dateCH1990000169118.05.1990         Original published format: CH 169190
[1992/19]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report
No.:WO9117959
Date:28.11.1991
Language:DE
[1991/27]
Type: A1 Application with search report 
No.:EP0483312
Date:06.05.1992
Language:DE
The application published by WIPO in one of the EPO official languages on 28.11.1991 takes the place of the publication of the European patent application.
[1992/19]
Type: B1 Patent specification 
No.:EP0483312
Date:27.07.1994
Language:DE
[1994/30]
Search report(s)International search report - published on:EP28.11.1991
ClassificationIPC:C02F3/30
[1992/19]
CPC:
C02F3/1215 (EP); C02F3/308 (EP); Y02W10/10 (EP)
Designated contracting statesAT,   CH,   DE,   DK,   IT,   LI,   SE [1992/19]
TitleGerman:VERFAHREN ZUR NITRAT- UND PHOSPHATELIMINATION BEI DER BIOLOGISCHEN REINIGUNG VON ABWASSER[1992/19]
English:PROCESS FOR ELIMINATING NITRATES AND PHOSPHATES IN THE BIOLOGICAL PURIFICATION OF WASTE WATER[1992/19]
French:PROCEDE D'ELIMINATION DE NITRATES ET DE PHOSPHATES LORS DE L'EPURATION BIOLOGIQUE D'EAUX D'EGOUTS[1992/19]
Entry into regional phase07.01.1992National basic fee paid 
07.01.1992Designation fee(s) paid 
07.01.1992Examination fee paid 
Examination procedure07.01.1992Examination requested  [1992/19]
18.02.1993Despatch of a communication from the examining division (Time limit: M04)
07.06.1993Reply to a communication from the examining division
30.07.1993Despatch of communication of intention to grant (Approval: Yes)
29.11.1993Communication of intention to grant the patent
20.01.1994Fee for grant paid
20.01.1994Fee for publishing/printing paid
Opposition(s)28.04.1995No opposition filed within time limit [2001/51]
Fees paidRenewal fee
01.04.1993Renewal fee patent year 03
13.05.1994Renewal 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  TooltipDK27.07.1994
IT27.07.1994
SE27.10.1994
[1999/42]
Former [1999/22]DK27.07.1994
SE27.10.1994
Former [1998/15]DK27.07.1994
SE27.10.1994
Former [1996/42]SE27.10.1994
Former [1996/28]SE27.10.1994
Former [1995/29]SE27.10.1994
Cited inInternational search[A]DE2740766  (ATTISHOLZ CELLULOSE);
 [A]FR2382405  (STAMICARBON [NL]);
 [A]EP0087127  (LINDE AG [DE]);
 [A]US4488968  (HONG SUN-NAN [US], et al)
Examination   - Abwassertechnik, Band IV, Seiten 239-240; 311-312
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.