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EP0328821
European procedure
Extract from the Register of European Patents
EP About this file: EP0328821
| EP0328821 - Two-stage wastewater treatment process [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 15.07.1995 Database last updated on 04.11.2024 | Most recent event Tooltip | 26.04.2002 | Lapse of the patent in a contracting state New state(s): ES | published on 12.06.2002 [2002/24] | Applicant(s) | For all designated states Zimpro Environmental, Inc. 301 West Military Road Rothschild Wisconsin 54474 / US | [N/P] |
| Former [1994/37] | For all designated states Zimpro Environmental, Inc. 301 West Military Road Rothschild, Wisconsin 54474 / US | ||
| Former [1991/19] | For all designated states ZIMPRO PASSAVANT ENVIRONMENTAL SYSTEMS, INC. 301 West Military Road Rothschild, Wisconsin 54474 / US | ||
| Former [1989/34] | For all designated states ZIMPRO/PASSAVANT INC. 301 West Military Road Rothschild Wisconsin 54474 / US | Inventor(s) | 01 /
Copa, William M. 706 Henrietta Wausau Wisconsin 54401 / US | 02 /
Vollstedt, Thomas J. 6210 Kirk Schofield Wisconsin 54476 / US | [1989/34] | Representative(s) | Goodanew, Martin Eric, et al MATHISEN, MACARA & CO. The Coach House 6-8 Swakeleys Road Ickenham Uxbridge UB10 8BZ / GB | [N/P] |
| Former [1991/19] | Goodanew, Martin Eric, et al MATHISEN, MACARA & CO. The Coach House 6-8 Swakeleys Road Ickenham Uxbridge UB10 8BZ / GB | ||
| Former [1989/34] | Knott, Stephen Gilbert MATHISEN, MACARA & CO. The Coach House 6-8 Swakeleys Road Ickenham Uxbridge Middlesex UB10 8BZ / GB | Application number, filing date | 88311772.3 | 13.12.1988 | [1989/34] | Priority number, date | US19880157456 | 17.02.1988 Original published format: US 157456 | [1989/34] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0328821 | Date: | 23.08.1989 | Language: | EN | [1989/34] | Type: | B1 Patent specification | No.: | EP0328821 | Date: | 14.09.1994 | Language: | EN | [1994/37] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 21.06.1989 | Classification | IPC: | C02F3/12 | [1989/34] | CPC: |
C02F3/085 (EP,US);
C02F9/00 (KR);
C02F3/006 (EP,US);
C02F3/121 (EP,US);
C02F3/1215 (EP,US);
C02F3/1263 (EP,US);
| Designated contracting states | AT, BE, CH, DE, ES, FR, GB, GR, IT, LI, LU, NL, SE [1989/34] | Title | German: | Zweistufiges Verfahren für Abwasserbehandlung | [1989/34] | English: | Two-stage wastewater treatment process | [1989/34] | French: | Procédé à deux étages pour le traitement d'eau usée | [1989/34] | Examination procedure | 22.02.1990 | Examination requested [1990/16] | 28.01.1991 | Despatch of a communication from the examining division (Time limit: M06) | 25.07.1991 | Reply to a communication from the examining division | 20.08.1991 | Despatch of a communication from the examining division (Time limit: M06) | 24.02.1992 | Reply to a communication from the examining division | 19.05.1992 | Despatch of communication that the application is refused, reason: substantive examination {1} | 13.07.1993 | Despatch of a communication from the examining division (Time limit: M04) | 08.11.1993 | Reply to a communication from the examining division | 14.01.1994 | Despatch of communication of intention to grant (Approval: Yes) | 16.03.1994 | Communication of intention to grant the patent | 26.05.1994 | Fee for grant paid | 26.05.1994 | Fee for publishing/printing paid | Appeal following examination | 14.07.1992 | Appeal received | 25.09.1992 | Statement of grounds filed | 08.07.1993 | Interlocutory revision of appeal | Opposition(s) | 15.06.1995 | No opposition filed within time limit [1995/36] | Fees paid | Renewal fee | 11.12.1990 | Renewal fee patent year 03 | 09.12.1991 | Renewal fee patent year 04 | 09.10.1992 | Renewal fee patent year 05 | 13.12.1993 | Renewal fee patent year 06 |
| Opt-out from the exclusive Tooltip competence of the Unified Patent Court | See the Register of the Unified Patent Court for opt-out data | ||
| 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 Tooltip | AT | 14.09.1994 | CH | 14.09.1994 | ES | 14.09.1994 | GR | 14.09.1994 | LI | 14.09.1994 | SE | 14.12.1994 | LU | 31.12.1994 | [2002/24] |
| Former [2000/04] | AT | 14.09.1994 | |
| CH | 14.09.1994 | ||
| GR | 14.09.1994 | ||
| LI | 14.09.1994 | ||
| SE | 14.12.1994 | ||
| LU | 31.12.1994 | ||
| Former [1995/29] | AT | 14.09.1994 | |
| CH | 14.09.1994 | ||
| LI | 14.09.1994 | ||
| SE | 14.12.1994 | ||
| Former [1995/13] | CH | 14.09.1994 | |
| LI | 14.09.1994 | Documents cited: | Search | [A]FR2000733 (DRYSDALE & CO LTD, et al); | [A]US3746638 (GENSMAN L, et al); | [A]GB1549400 (EFLO INT LTD); | [A]EP0196402 (OCCIDENTAL CHEM CO [US]); | [A]GB2198123 (ASHBROOK SIMON HARTLEY INC) | [ ] - JOURNAL WPCF, vol. 51, no. 11, November 1979, pages 2615-2625; R.A. Poduska et al.: "Polymer addition for effluent quality controL" | [ ] - JOURNAL WPCF, vol. 59, no. 4, April 1987, pages 199-211; A. NG et al.: "Nitrification enhancement in the powdered activated carbon-activated sludge process for the treatment of petroleum refinery wastewaters" |