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EP0327400
European procedure
Extract from the Register of European Patents
EP About this file: EP0327400
| EP0327400 - Chromatographic separations using ion-exchange resins [Right-click to bookmark this link] | Status | Patent maintained as amended Status updated on 18.10.1996 Database last updated on 22.08.2024 | Most recent event Tooltip | 18.10.1996 | Patent maintained (B2 publication) | published on 04.12.1996 [1996/49] | Applicant(s) | For all designated states The Dow Chemical Company 2020 Dow Center Midland, Michigan 48674 / US | [N/P] |
| Former [1989/32] | For all designated states THE DOW CHEMICAL COMPANY 2030 Dow Center Abbott Road P.O. Box 1967 Midland Michigan 48640-1967 / US | Inventor(s) | 01 /
Dhingra, Yog Raj 6101 Sturgeon Creek Parkway Midland Michigan 48640 / US | 02 /
Pynnonen, Bruce W. 113 Helen Street Midland Michigan 48640 / US | [1989/32] | Representative(s) | Burford, Anthony Frederick, et al Beck Greener Fulwood House 12 Fulwood Place London WC1V 6HR / GB | [N/P] |
| Former [1989/32] | Burford, Anthony Frederick, et al W.H. Beck, Greener & Co. 7 Stone Buildings Lincoln's Inn London WC2A 3SZ / GB | Application number, filing date | 89301108.0 | 03.02.1989 | [1989/32] | Priority number, date | US19880152618 | 05.02.1988 Original published format: US 152618 | [1989/32] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0327400 | Date: | 09.08.1989 | Language: | EN | [1989/32] | Type: | A3 Search report | No.: | EP0327400 | Date: | 28.02.1990 | Language: | EN | [1990/09] | Type: | B1 Patent specification | No.: | EP0327400 | Date: | 14.07.1993 | Language: | EN | [1993/28] | Type: | B2 New European patent specification | No.: | EP0327400 | Date: | 04.12.1996 | Language: | EN | [1996/49] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 11.01.1990 | Classification | IPC: | B01D15/04, B01J39/20, B01J41/14, C13K11/00 | [1993/28] | CPC: |
B01J39/20 (EP);
B01J39/26 (EP);
C13K11/00 (EP)
|
| Former IPC [1989/32] | B01D15/04, B01J39/20, C13K11/00 | Designated contracting states | BE, DE, ES, FR, GB, IT, NL [1989/32] | Title | German: | Chromatographische Trennungen mit Ionenaustauschharzen | [1989/32] | English: | Chromatographic separations using ion-exchange resins | [1989/32] | French: | Séparation chromatographique utilisant des résines d'échange d'ions | [1989/32] | Examination procedure | 18.08.1990 | Examination requested [1990/41] | 04.11.1991 | Despatch of a communication from the examining division (Time limit: M06) | 11.05.1992 | Reply to a communication from the examining division | 13.07.1992 | Despatch of communication of intention to grant (Approval: Yes) | 18.01.1993 | Communication of intention to grant the patent | 12.03.1993 | Fee for grant paid | 12.03.1993 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
12.04.1994
21.04.1994
ADMISSIBLE Rohm and Haas Company 100 Independence Mall West Philadelphia, PA 19106-2399 / US Opponent's representative Tanner, James Percival ROHM AND HAAS (UK) LTD. European Operations Patent Department Lennig House 2 Mason's Avenue Croydon CR9 3NB / GB | [N/P] |
| Former [1994/23] | |||
| Opponent(s) | 01
12.04.1994
21.04.1994
ADMISSIBLE ROHM AND HAAS COMPANY 100 Independence Mall West PHILADELPHIA, PENNSYLVANIA 19106-2399 / US Opponent's representative Tanner, James Percival ROHM AND HAAS (UK) LTD. European Operations Patent Department Lennig House 2 Mason's Avenue Croydon CR9 3NB / GB | 18.05.1994 | Invitation to proprietor to file observations on the notice of opposition | 19.01.1995 | Reply of patent proprietor to notice(s) of opposition | 07.02.1996 | Date of oral proceedings | 26.02.1996 | Despatch of a communication from the opposition division (Time limit: M02) | 26.02.1996 | Despatch of minutes of oral proceedings | 07.03.1996 | Reply to a communication from the opposition division | 25.03.1996 | Despatch of interlocutory decision in opposition | 04.04.1996 | Legal effect of interlocutory decision in opposition | 08.07.1996 | Despatch of communication that the patent will be maintained as amended | 17.09.1996 | Fee for printing new specification paid | Fees paid | Renewal fee | 18.12.1990 | Renewal fee patent year 03 | 14.12.1991 | Renewal fee patent year 04 | 07.12.1992 | Renewal fee patent year 05 |
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