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EP0323181
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EP About this file: EP0323181
| EP0323181 - Dispersants resistant to color change [Right-click to bookmark this link] | Status | The application has been refused Status updated on 16.12.1992 Database last updated on 19.07.2024 | Most recent event Tooltip | 16.12.1992 | Refusal of application | published on 03.02.1993 [1993/05] | Applicant(s) | For all designated states E. I. du Pont de Nemours and Company 1007 Market Street Wilmington, DE 19898 / US | [N/P] |
| Former [1989/35] | For all designated states E.I. DU PONT DE NEMOURS AND COMPANY 1007 Market Street Wilmington Delaware 19898 / US | ||
| Former [1989/27] | For all designated states E.I. DU PONT DE NEMOURS AND COMPANY Barley Plaza, Building 17, P.O. Box 80017 Wilmington, DE 19880-0017 / US | Inventor(s) | 01 /
West, Michael Wendell Johnson 145 Devonshire Road Wilmington Delaware 19803 / US | [1989/27] | Representative(s) | Jones, Alan John, et al CARPMAELS & RANSFORD 43 Bloomsbury Square London, WC1A 2RA / GB | [N/P] |
| Former [1989/27] | Jones, Alan John, et al CARPMAELS & RANSFORD 43 Bloomsbury Square London, WC1A 2RA / GB | Application number, filing date | 88312282.2 | 23.12.1988 | [1989/27] | Priority number, date | US19870138039 | 28.12.1987 Original published format: US 138039 | [1989/27] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0323181 | Date: | 05.07.1989 | Language: | EN | [1989/27] | Type: | A3 Search report | No.: | EP0323181 | Date: | 03.10.1990 | Language: | EN | [1990/40] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 13.08.1990 | Classification | IPC: | C08F8/00, C08F297/00 | [1989/27] | CPC: |
C09B67/009 (EP,US);
C08F293/00 (EP,US);
C08F8/00 (EP,US)
| C-Set: |
C08F8/00, C08F293/00 (EP,US)
| Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE [1989/27] | Title | German: | Verfärbungsresistente Dispergiermittel | [1989/27] | English: | Dispersants resistant to color change | [1989/27] | French: | Agents dispersants résistant à la décoloration | [1989/27] | File destroyed: | 12.06.1999 | Examination procedure | 27.11.1990 | Examination requested [1991/04] | 24.03.1992 | Despatch of communication of intention to grant (Approval: ) | 04.09.1992 | Despatch of communication that the application is refused, reason: formalities examination [1993/05] | 14.09.1992 | Application refused, date of legal effect [1993/05] | Fees paid | Renewal fee | 11.12.1990 | Renewal fee patent year 03 | 09.12.1991 | 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 | [AD]EP0218436 (DU PONT [US]) |