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EP0312536
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EP About this file: EP0312536
| EP0312536 - METHOD OF TREATMENT OF THE CIRCULATION WATER OF A PAPER MILL [Right-click to bookmark this link] | Status | The application has been withdrawn Status updated on 20.12.1991 Database last updated on 26.06.2024 | Most recent event Tooltip | 20.12.1991 | Withdrawal of application | published on 19.02.1992 [1992/08] | Applicant(s) | For all designated states A. AHLSTROM CORPORATION 29600 Noormarkku / FI | [N/P] |
| Former [1991/47] | For all designated states A. AHLSTROM CORPORATION FIN-29600 Noormarkku / FI | ||
| Former [1989/17] | For all designated states KAMYR AB Box 1033 S-651 15 Karlstad / SE | Inventor(s) | 01 /
HYNNINEN, Pertti Kaunismäenkuja 1 SF-00430 Helsinki / FI | [1989/17] | Representative(s) | Schumacher, Horst, et al Palgen, Schumacher & Kollegen Frühlingstrasse 43A 45133 Essen / DE | [N/P] |
| Former [1991/21] | Schumacher, Horst, Dr. Dipl.-Phys., et al Patentanwälte, Dipl.-Phys. Dr. Peter Palgen, Dipl.-Phys. Dr. Horst Schumacher, Frühlingstrasse 43A D-45133 Essen / DE | ||
| Former [1989/17] | Palgen, Peter, Dipl.-Phys. Dr. Patentanwälte, Dipl.-Phys. Dr. Peter Palgen, Dipl.-Phys. Dr. H. Schumacher, Mulvanystrasse 2 D-40239 Düsseldorf / DE | Application number, filing date | 87904264.6 | 01.07.1987 | [1989/17] | WO1987FI00090 | Priority number, date | FI19860002810 | 02.07.1986 Original published format: FI 862810 | [1989/17] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | WO8800259 | Date: | 14.01.1988 | Language: | EN | [1988/02] | Type: | A1 Application with search report | No.: | EP0312536 | Date: | 26.04.1989 | Language: | EN | The application published by WIPO in one of the EPO official languages on 14.01.1988 takes the place of the publication of the European patent application. | [1989/17] | Search report(s) | International search report - published on: | SE | 14.01.1988 | Classification | IPC: | D21F1/66, C02F1/52 | [1989/17] | CPC: |
D21F1/66 (EP,US);
C02F1/54 (EP,US)
| Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, LU, NL [1989/17] | Title | German: | VERFAHREN ZUR BEHANDLUNG DES ZIRKULATIONSWASSERS EINER PAPIERMÜHLE | [1989/17] | English: | METHOD OF TREATMENT OF THE CIRCULATION WATER OF A PAPER MILL | [1989/17] | French: | PROCEDE POUR TRAITER L'EAU DE CIRCULATION D'UNE FABRIQUE DE PAPIER | [1989/17] | File destroyed: | 02.03.1998 | Entry into regional phase | 28.12.1988 | National basic fee paid | 28.12.1988 | Designation fee(s) paid | 28.12.1988 | Examination fee paid | Examination procedure | 21.12.1987 | Request for preliminary examination filed International Preliminary Examining Authority: AT | 28.12.1988 | Examination requested [1989/17] | 20.03.1990 | Despatch of a communication from the examining division (Time limit: M06) | 06.11.1990 | Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time | 07.01.1991 | Reply to a communication from the examining division | 28.06.1991 | Despatch of communication of intention to grant (Approval: No) | 17.12.1991 | Application withdrawn by applicant [1992/08] | Request for further processing for: | 07.01.1991 | Request for further processing filed | 07.01.1991 | Full payment received (date of receipt of payment) Request granted | 15.04.1991 | Decision despatched | Fees paid | Renewal fee | 29.06.1989 | Renewal fee patent year 03 | 18.05.1990 | Renewal fee patent year 04 | 03.06.1991 | Renewal fee patent year 05 |
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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. | Cited in | International search | [XP]WO8604888 (AHLSTROEM OY [FI]); | [X]WO8603236 (AHLSTROEM OY [FI]); | [X]US4420369 (EATON DAVID C [US], et al) | [X] - TAPP 1, Vol. 65, No. 5, May 1982, D.C. EATON et al., "Kraft Bleach Plant Effluent Can be Decolorized Using the Synergistic Effects of Cations Solubilized by Acidification of Waste Sludge", p. 167-170. |