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EP0538500
European procedure
Extract from the Register of European Patents
EP About this file: EP0538500
| EP0538500 - Process for the preparation of polymeric methylendiphenylene diisocyanate having reduced color and chloride content [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 03.01.1996 Database last updated on 19.10.2024 | Most recent event Tooltip | 03.01.1996 | No opposition filed within time limit | published on 24.01.1996 [1996/04] | Applicant(s) | For all designated states BASF Corporation 8 Campus Drive Parsippany New Jersey 07054 / US | [N/P] |
| Former [1993/17] | For all designated states BASF CORPORATION 8 Campus Drive Parsippany, New Jersey 07054 / US | Inventor(s) | 01 /
Reichel, Curtis John 12238 Fordline Southgate, Michigan 48195 / US | 02 /
Speier, Jon Stanley 2658 Edgemont Trenton, MI 48183 / US | 03 /
Ott, Roger Alan 4826 Beech Harbor Avenue Baton Rouge, LA 70817 / US | [1993/17] | Representative(s) | Michaelis, Wolfgang BASF Aktiengesellschaft, Patentabteilung ZDX - C 6 67056 Ludwigshafen / DE | [N/P] |
| Former [1993/17] | Michaelis, Wolfgang, Dr. BASF Aktiengesellschaft, Patentabteilung ZDX - C 6 D-67056 Ludwigshafen / DE | Application number, filing date | 91117877.0 | 19.10.1991 | [1993/17] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0538500 | Date: | 28.04.1993 | Language: | EN | [1993/17] | Type: | B1 Patent specification | No.: | EP0538500 | Date: | 01.02.1995 | Language: | EN | [1995/05] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 23.06.1992 | Classification | IPC: | C07C263/20 | [1993/17] | CPC: |
C07C263/10 (EP);
C07C263/20 (EP)
| C-Set: |
C07C263/10, C07C265/14 (EP);
C07C263/20, C07C265/14 (EP) | Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, IT, LI, NL, SE [1993/17] | Title | German: | Verfahren zur Herstellung von polymerischen Methylen-dyphenylen-diisocyanaten mit verminderter Farbe und Chloridgehalt | [1993/17] | English: | Process for the preparation of polymeric methylendiphenylene diisocyanate having reduced color and chloride content | [1993/17] | French: | Procédé pour la préparation de méthylène diphénylène diisocyanates polymériques avec couleur atténuée et teneur en chlorure réduit | [1993/17] | Examination procedure | 10.11.1992 | Examination requested [1993/17] | 21.03.1994 | Despatch of communication of intention to grant (Approval: Yes) | 01.08.1994 | Communication of intention to grant the patent | 07.10.1994 | Fee for grant paid | 07.10.1994 | Fee for publishing/printing paid | Opposition(s) | 03.11.1995 | No opposition filed within time limit [1996/04] | Fees paid | Renewal fee | 18.10.1993 | Renewal fee patent year 03 | 27.10.1994 | Renewal 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. | Documents cited: | Search | [X]GB1094980 (MONSANTO CO); | [X]FR2184592 (OLIN CORP [US]); | [AD]US4465639 (HATFIELD JR RICHARD [US]); | [AD]US4507464 (RASSHOFER WERNER [DE]) |