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EP0579744
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EP About this file: EP0579744
| EP0579744 - METHOD FOR REDUCING COLORED MATTER FROM BLEACH EFFLUENT USING A DZD BLEACH SEQUENCE [Right-click to bookmark this link] | Status | The application has been refused Status updated on 07.12.2001 Database last updated on 11.04.2026 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states INTERNATIONAL PAPER COMPANY Corporate Research Center, Long Meadow Road Tuxedo, NY 10987 / US | [1994/04] | Inventor(s) | 01 /
BHATTACHARJEE, Shyam S. 22 Chatham Road Monroe, NY 10950 / US | 02 /
RENARD, Jean J. 1405 Oak Tree Court Mobile, AL 36608 / US | [1994/04] | Representative(s) | Wiklund, Erik AWAPATENT AB, Box 5117 200 71 Malmö / SE | [N/P] |
| Former [1994/04] | Wiklund, Erik AWAPATENT AB, Box 5117 S-200 71 Malmö / SE | Application number, filing date | 92910321.6 | 26.03.1992 | [1994/04] | WO1992US02533 | Priority number, date | US19910682728 | 08.04.1991 Original published format: US 682728 | [1994/04] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | WO9217639 | Date: | 15.10.1992 | Language: | EN | [1992/26] | Type: | A1 Application with search report | No.: | EP0579744 | Date: | 26.01.1994 | Language: | EN | The application published by WIPO in one of the EPO official languages on 15.10.1992 takes the place of the publication of the European patent application. | [1994/04] | Search report(s) | International search report - published on: | US | 15.10.1992 | (Supplementary) European search report - dispatched on: | EP | 27.09.1995 | Classification | IPC: | D21C9/14, D21C9/153, D21C9/10 | [1995/43] | CPC: |
D21C9/144 (EP,US);
D21C9/153 (EP,US)
|
| Former IPC [1994/04] | D21C9/14, D21C9/153 | Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LI, LU, MC, NL, SE [1994/04] | Title | German: | VERFAHREN ZUR VERMINDERUNG DER FARBSTOFFE EINES BLEICHABWASSERS MITTELS EINER DZD-BLEICHSEQUENZ | [1994/04] | English: | METHOD FOR REDUCING COLORED MATTER FROM BLEACH EFFLUENT USING A DZD BLEACH SEQUENCE | [1994/04] | French: | PROCEDE DE REDUCTION DE MATIERE COLOREE D'UN EFFLUENT DE BLANCHIMENT EN UTILISANT UNE SEQUENCE DE BLANCHIMENT DZD | [1994/04] | Entry into regional phase | 08.10.1993 | National basic fee paid | 08.10.1993 | Search fee paid | 08.10.1993 | Designation fee(s) paid | 08.10.1993 | Examination fee paid | Examination procedure | 26.10.1992 | Request for preliminary examination filed International Preliminary Examining Authority: DE | 08.10.1993 | Examination requested [1994/04] | 14.10.1996 | Despatch of a communication from the examining division (Time limit: M04) | 01.02.1997 | Reply to a communication from the examining division | 08.08.1997 | Despatch of communication that the application is refused, reason: substantive examination [2002/04] | 15.11.2001 | Application refused, date of legal effect [2002/04] | Appeal following examination | 08.10.1997 | Appeal received No. T0070/98 | 05.12.1997 | Statement of grounds filed | 22.12.2000 | Invitation to file observations in an appeal (Time limit: M02) [2000/52] | 22.02.2001 | Date of receipt of observations in an appeal [2001/08] | 15.11.2001 | Result of appeal procedure: appeal of the applicant was rejected | 15.11.2001 | Date of oral proceedings | 23.11.2001 | Minutes of oral proceedings despatched | Fees paid | Renewal fee | 04.08.1994 | Renewal fee patent year 03 | 04.03.1995 | Renewal fee patent year 04 | 04.03.1996 | Renewal fee patent year 05 | 05.03.1997 | Renewal fee patent year 06 | 02.03.1998 | Renewal fee patent year 07 | 26.03.1999 | Renewal fee patent year 08 | 06.03.2000 | Renewal fee patent year 09 | 08.03.2001 | Renewal fee patent year 10 | Penalty fee | Additional fee for renewal fee | 31.03.1994 | 03 M06 Fee paid on 04.08.1994 |
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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. | Documents cited: | Search | No further relevant documents disclosed | International search | [Y] 69th Annual Meeting Technical Section Canadian Pulp and Paper Association, 01 February 1983, LIEBERGOTT et al., "Oxidative Bleeching - A Review", pages 169-183, see pages 175 and 176. [Y] |