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EP0685448
European procedure
Extract from the Register of European Patents
EP About this file: EP0685448
| EP0685448 - Process for purifying acrylic acid [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 19.02.1999 Database last updated on 19.10.2024 | Most recent event Tooltip | 19.02.1999 | No opposition filed within time limit | published on 07.04.1999 [1999/14] | Applicant(s) | For all designated states ROHM AND HAAS COMPANY 100 Independence Mall West Philadelphia, PA 19106-2399 / US | [N/P] |
| Former [1995/49] | For all designated states ROHM AND HAAS COMPANY 100 Independence Mall West Philadelphia, Pennsylvania 19106-2399 / US | Inventor(s) | 01 /
Bauer, William, Jr. 2046 Winthrop Road Huntingdon Valley, Pennsylvania 19006 / US | 02 /
Mason, Robert Michael 2202 Hillthorpe Avenue Roslyn, Pennsylvania 19001 / US | 03 /
Hale, Timothy Allen 5906 McKnight Street Houston, Texas 77035 / US | 04 /
Upmacis, Rita Karina 560 Riverside Drive, Apt. 7B New York, NY 10027 / US | [1995/49] | Representative(s) | Tanner, James Percival, et al ROHM AND HAAS (UK) LTD. European Operations Patent Department Lennig House 2 Mason's Avenue Croydon CR9 3NB / GB | [N/P] |
| Former [1995/49] | Tanner, James Percival, et al ROHM AND HAAS (UK) LTD. European Operations Patent Department Lennig House 2 Mason's Avenue Croydon CR9 3NB / GB | Application number, filing date | 95303308.1 | 17.05.1995 | [1995/49] | Priority number, date | US19940251762 | 31.05.1994 Original published format: US 251762 | [1995/49] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0685448 | Date: | 06.12.1995 | Language: | EN | [1995/49] | Type: | B1 Patent specification | No.: | EP0685448 | Date: | 15.04.1998 | Language: | EN | [1998/16] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 29.09.1995 | Classification | IPC: | C07C57/04, C07C51/44, C07C51/50 | [1995/49] | CPC: |
C07C51/487 (EP,KR,US);
C07C51/44 (EP,KR,US);
C07C51/50 (EP,KR,US);
Y10S203/22 (EP,KR,US)
| C-Set: |
C07C51/44, C07C57/04 (EP,US);
C07C51/487, C07C57/04 (US,EP);
C07C51/50, C07C57/04 (US,EP)
| Designated contracting states | BE, DE, ES, FR, GB, IT, NL [1995/49] | Title | German: | Verfahren zur Reinigung der Akrylsäure | [1995/49] | English: | Process for purifying acrylic acid | [1995/49] | French: | Procédé de purification d'acide acrylique | [1995/49] | Examination procedure | 24.05.1995 | Examination requested [1995/49] | 17.02.1997 | Despatch of communication of intention to grant (Approval: No) | 03.04.1997 | Despatch of communication of intention to grant (Approval: later approval) | 22.08.1997 | Communication of intention to grant the patent | 15.09.1997 | Fee for grant paid | 15.09.1997 | Fee for publishing/printing paid | Opposition(s) | 16.01.1999 | No opposition filed within time limit [1999/14] | Fees paid | Renewal fee | 19.04.1997 | Renewal fee patent year 03 |
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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 | [DX]US3725208 (MAEZAWA S, et al) [DX] 1-4,7 * THE WHOLE DOCUMENT. *; | [X]US3893895 (DEHNERT JURGEN, et al) [X] 1-4 * column 1, line 58 - line 64 * * column 2, line 19 - line 49 * * claims 1-5,9 *; | [X]US5208370 (BAUER JR WILLIAM [US], et al) [X] 1-4 * column 1, line 15 - line 26 * * column 1, line 34 - line 39 * * column 3, line 38 - line 64 * * column 5, line 6 - line 14 * * claims 1-4 *; | [X]EP0312191 (MITSUI TOATSU CHEMICALS [JP], et al) [X] 1-4 * page 3, line 30 - line 34 * * page 5, line 15 - line 24 * * page 5; example 1 * * claims 1-3 *; | [X]GB1346737 (STANDARD OIL CO [US]) [X] 1,4 * page 1, line 80 - page 2, line 9 * * claim 1 * | by applicant | US3725208 | US4828652 | - RESEARCH DISCLOSURE, vol. 167, no. 66 |