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EP0264229
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EP About this file: EP0264229
| EP0264229 - Process for preparing a polyimide membrane [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 12.06.1991 Database last updated on 26.06.2024 | Most recent event Tooltip | 07.07.2007 | Change - inventor | published on 08.08.2007 [2007/32] | Applicant(s) | For all designated states The British Petroleum Company p.l.c. Britannic House Moor Lane London EC2Y 9BU / GB | [N/P] |
| Former [1988/16] | For all designated states The British Petroleum Company p.l.c. Britannic House Moor Lane London EC2Y 9BU / GB | Inventor(s) | 01 /
Ogden, Ian Kenneth The B. P. Company p.l.c. Chertsey Road Sunbury-on-Thames Middlesex TW16 7LN / GB | 02 /
Rizvi, Azhar Ali The B. P. Company p.l.c. Chertsey Road Sunbury-on-Thames Middlesex TW16 7LN / GB | [1988/16] | Representative(s) | Dodding, Robert Anthony, et al BP INTERNATIONAL LIMITED Patents Division Chertsey Road Sunbury-on-Thames Middlesex, TW16 7LN / GB | [N/P] |
| Former [1988/16] | Dodding, Robert Anthony, et al BP INTERNATIONAL LIMITED Patents Division Chertsey Road Sunbury-on-Thames Middlesex, TW16 7LN / GB | Application number, filing date | 87308936.1 | 08.10.1987 | [1988/16] | Priority number, date | GB19860024701 | 15.10.1986 Original published format: GB 8624701 | [1988/16] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0264229 | Date: | 20.04.1988 | Language: | EN | [1988/16] | Type: | A3 Search report | No.: | EP0264229 | Date: | 28.12.1988 | Language: | EN | [1988/52] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 07.11.1988 | Classification | IPC: | B01D13/04 | [1988/16] | CPC: |
B01D67/0016 (EP);
B01D67/00165 (US);
B01D67/0009 (EP);
B01D67/00091 (US);
B01D67/0013 (EP,US);
B01D69/08 (EP);
B01D71/64 (EP);
B01D71/643 (US);
B01D2323/08 (EP);
| Designated contracting states | CH, DE, FR, GB, IT, LI [1988/16] | Title | German: | Verfahren zur Herstellung einer Polyimid-Membran | [1988/16] | English: | Process for preparing a polyimide membrane | [1988/16] | French: | Procédé de fabrication d'une membrane en polyimide | [1988/16] | File destroyed: | 02.03.1998 | Examination procedure | 07.05.1988 | Examination requested [1988/27] | 18.07.1990 | Despatch of a communication from the examining division (Time limit: M04) | 29.11.1990 | Application deemed to be withdrawn, date of legal effect [1991/31] | 17.01.1991 | Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time [1991/31] | Fees paid | Renewal fee | 11.09.1989 | Renewal fee patent year 03 | 03.09.1990 | 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 | [A]EP0162964 (GEESTHACHT GKSS FORSCHUNG [DE]); | [A]US4604208 (CHU CHAOKANG [US], et al); | [XP]EP0214360 (GEESTHACHT GKSS FORSCHUNG [DE]) |