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Extract from the Register of European Patents

EP About this file: EP0019326

EP0019326 - Process for purifying urea-containing waste water and process for preparing melamine [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  26.08.1986
Database last updated on 02.11.2024
Most recent event   Tooltip18.05.1989Lapse of the patent in a contracting state
New state(s): GB
published on 05.07.1989 [1989/27]
Applicant(s)For all designated states
STAMICARBON B.V.
Mijnweg 1
NL-6167 AC Geleen / NL
[1980/24]
Inventor(s)01 / Goorden, Josephus Johannes Petrus Maria
NL-6133 VR Sittard
Haagstraat 29 / NL
[1980/24]
Representative(s)Hoogstraten, Willem Cornelis R., et al
DSM Patents & Trademarks
Office Geleen
Postbus 9
6160 MA Geleen / NL
[N/P]
Former [1986/41]Hoogstraten, Willem Cornelis Roeland, et al
OCTROOIBUREAU DSM Postbus 9
NL-6160 MA Geleen / NL
Former [1985/30]Roeffen, Wilhelmus Johannes Maria
OCTROOIBUREAU DSM Postbus 9
NL-6160 MA Geleen / NL
Former [1980/24]Hatzmann, Marinus Jan
OCTROOIBUREAU DSM P.O.Box 9
NL-6160 MA Geleen / NL
Application number, filing date80200404.401.05.1980
[1980/24]
Priority number, dateNL1979000362309.05.1979         Original published format: NL 7903623
[1980/24]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0019326
Date:26.11.1980
Language:EN
[1980/24]
Type: B1 Patent specification 
No.:EP0019326
Date:24.08.1983
Language:EN
[1983/34]
Search report(s)(Supplementary) European search report - dispatched on:EP08.09.1980
ClassificationIPC:C02F1/28, C07D251/60
[1980/24]
CPC:
C01C1/12 (EP,US); C01C1/086 (EP,US); C02F1/025 (EP,US);
C07D251/60 (EP,US)
Designated contracting statesAT,   BE,   DE,   FR,   GB,   IT,   NL,   SE [1980/24]
TitleGerman:Verfahren zur Reinigung von Harnstoff enthaltendem Abwasser und Verfahren zum Herstellen von Melamin[1983/34]
English:Process for purifying urea-containing waste water and process for preparing melamine[1980/24]
French:Procédé pour la purification d'eaux usées contenant de l'urée et procédé pour la préparation de mélamine[1980/24]
Former [1980/24]Verfahren zum Klären von Ureum enthaltendem Abwasser und Verfahren zum Herstellen von Melamin
Examination procedure10.04.1981Examination requested  [1981/26]
31.03.1982Despatch of a communication from the examining division (Time limit: M04)
29.07.1982Reply to a communication from the examining division
08.11.1982Despatch of communication of intention to grant (Approval: )
04.02.1983Communication of intention to grant the patent
28.03.1983Fee for grant paid
28.03.1983Fee for publishing/printing paid
Opposition(s)Opponent(s)01  16.05.1984  23.07.1984  ADMISSIBLE
CHEMIE HOLDING AKTIENGESELLSCHAFT
St.Peterstrasse 25
A-4020 Linz / AT
 [1984/30]
24.07.1984Invitation to proprietor to file observations on the notice of opposition
30.01.1985Reply of patent proprietor to notice(s) of opposition
05.03.1985Communication of observations of patent proprietor (Time limit: M02)
04.05.1985Reply of parties involved to observations of patent proprietor
12.09.1985Despatch of a communication from the opposition division (Time limit: M04)
15.01.1986Reply to a communication from the opposition division
12.05.1986Despatch of communication that the patent will be revoked
23.05.1986Legal effect of revocation of patent [1986/42]
Fees paidRenewal fee
25.05.1982Renewal fee patent year 03
18.05.1983Renewal 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  TooltipGB01.05.1986
SE02.05.1986
[1989/27]
Former [1989/15]SE02.05.1986
Documents cited:SearchFR1541273  [ ] (TOYO KOATSU IND INC);
 GB1129939  [ ] (CHEMIE LINZ AG);
 FR2001269  [ ] (STAMICARBON);
 FR2013682  [ ] (BASF AG);
 FR1600495  [ ];
 FR2056850  [ ] (MITSUI TOATSU CHEMICALS, et al);
 FR2093882  [ ] (STAMICARBON);
 US3922222  [ ] (VAN MOORSEL WILLIAM H);
 DE2616054  [ ] (FMC CORP);
 US4087513  [ ] (SCHELL LORENZ P);
 US4120667  [ ] (GETTERT HANS, et al);
 US4163648  [ ] (BIERMANS ANDREAS J [NL])
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.