-
EP0638515
European procedure
Extract from the Register of European Patents
EP About this file: EP0638515
| EP0638515 - Process for upgrading of diluted acid [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 02.02.2001 Database last updated on 20.07.2024 | Most recent event Tooltip | 02.02.2001 | No opposition filed within time limit | published on 21.03.2001 [2001/12] | Applicant(s) | For all designated states Kerr-McGee Pigments GmbH & Co. KG Geb. N 215, Rheinuferstrasse 7-9 47829 Krefeld / DE | [1999/34] |
| Former [1995/07] | For all designated states BAYER ANTWERPEN N.V. Haven 507, Scheldelaan 420 B-2040 Antwerpen / BE | Inventor(s) | 01 /
De Cleyn, Rene, Dr. Max-Hermanlei 152 B-2930 Brasschaat / BE | 02 /
Quaeyhaegens, Frank, Dr. Osylei 68 B-2640 Mortsel / BE | 03 /
Sluyts, Domien Elzenlaan 4 B-2490 Hoevenen / BE | [1995/07] | Representative(s) | Hansen, Bernd, et al Hoffmann Eitle Patent- und Rechtsanwälte Postfach 81 04 20 81904 München / DE | [N/P] |
| Former [1998/40] | Hansen, Bernd, Dr. Dipl.-Chem., et al Hoffmann Eitle, Patent- und Rechtsanwälte, Postfach 81 04 20 81904 München / DE | ||
| Former [1997/10] | Braun, Rolf, Dr., et al Bayer AG, Konzernzentrale RP, Patente Konzern 51368 Leverkusen / DE | ||
| Former [1995/07] | Müller, Gerhard, Dr., et al BAYER AG Konzernverwaltung RP Patente Konzern D-51368 Leverkusen / DE | Application number, filing date | 94111966.1 | 01.08.1994 | [1995/07] | Priority number, date | DE19934327025 | 12.08.1993 Original published format: DE 4327025 | [1995/07] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0638515 | Date: | 15.02.1995 | Language: | DE | [1995/07] | Type: | A3 Search report | No.: | EP0638515 | Date: | 27.09.1995 | Language: | DE | [1995/39] | Type: | B1 Patent specification | No.: | EP0638515 | Date: | 05.04.2000 | Language: | DE | [2000/14] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 08.08.1995 | Classification | IPC: | C01B17/90, C01C1/242, C22B34/12, C01G23/053 | [1995/07] | CPC: |
C22B34/1254 (EP);
C01C1/242 (EP)
| Designated contracting states | BE, DE, ES, FR, GB, IT, NL [1995/07] | Title | German: | Verfahren zur Aufarbeitung von Dünnsäure | [1995/07] | English: | Process for upgrading of diluted acid | [1995/07] | French: | Procédé pour valorisation d'acide dilué | [1995/07] | Examination procedure | 10.10.1995 | Examination requested [1995/49] | 10.06.1997 | Despatch of a communication from the examining division (Time limit: M04) | 08.10.1997 | Reply to a communication from the examining division | 26.01.1998 | Despatch of a communication from the examining division (Time limit: M04) | 15.05.1998 | Reply to a communication from the examining division | 14.07.1999 | Despatch of communication of intention to grant (Approval: Yes) | 06.10.1999 | Communication of intention to grant the patent | 27.12.1999 | Fee for grant paid | 27.12.1999 | Fee for publishing/printing paid | Opposition(s) | 06.01.2001 | No opposition filed within time limit [2001/12] | Fees paid | Renewal fee | 15.07.1996 | Renewal fee patent year 03 | 01.09.1997 | Renewal fee patent year 04 | 10.08.1998 | Renewal fee patent year 05 | 11.08.1999 | 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. | Documents cited: | Search | [DYA]US3016286 (MIYOSHI MASUKAWA, et al) [DY] 1,3 * column W * * column 16, line 43 - line 48; example 5 * [A] 2; | [Y]JPS51141798 ; | [DA]DE3115937 (VAJNA SANDOR [DE], et al) [DA] 1 * page 5, line 25 - line 30; claims 1,2,8 *; | [A]SU923949 ; | [A]EP0541002 (NITTETSU MINING CO LTD [JP]) [A] 1,3 * page 3, line 29 - page 4, line 12 *; | [A]EP0207403 (BAYER ANTWERPEN NV [BE]); | [A]FR2683217 (PAPAILHAU JEAN LOUIS [FR]) [A] 2 * page 6, line 34 - page 7, line 7; claim 2 *; | [A]DE3123361 (BAYER AG [DE]) [A] 2 * the whole document *; | CN1050709 [ ] (HOU XIANGLIN [HK]); | [A]US4207295 (DE ATLEY WILLIAM B [US], et al) [A] 2 | [Y] - TOYO SODA, "Treatment of ammonium ferrous sulphate containing heavy metals - to recover red iron oxide and ammonium sulphate.", DATABASE WPI, 0, Derwent World Patents Index, vol. 77, no. 04, Database accession no. 77-06339Y, & JPS51141798 A 19761207 (TOYO SODA) [Y] 1,3 * abstract * | [A] - "Production of ammonium sulphate from sulphate wastes.", DATABASE WPI, 0, Derwent World Patents Index, no. 09, Database accession no. 83-22106K, & SU923949 A 19820531 (POLYMER PRODN. COMBI.) [A] 1 * abstract * | [A] - T. SATO ET AL., "The kinetics of aluminium(III) extraction from sulphuric acid solutions by di-(2-ethylhexyl)-phosphoric acid.", JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, PERGAMON (GB), (197808), vol. 40, no. 8, pages 1571 - 1574 [A] 1 | [A] - X. HOU, "Process for recovery of chromium from wastewater from electrochroming plants effluents.", CHEMICAL ABSTRACTS, (19911104), vol. 115, no. 18, Database accession no. 189187y, page 382 [A] 2 * abstract * |