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EP0541939
European procedure
Extract from the Register of European Patents
EP About this file: EP0541939
| EP0541939 - 3-Allyloxy-2-hydroxypropyl ether of cellulose [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 16.10.1998 Database last updated on 30.10.2024 | Most recent event Tooltip | 16.10.1998 | No opposition filed within time limit | published on 02.12.1998 [1998/49] | Applicant(s) | For all designated states Wolff Walsrode Aktiengesellschaft Postfach 15 15 D-29655 Walsrode / DE | [1993/20] | Inventor(s) | 01 /
Breckwoldt, Jörn, Dr. Rostocker Strasse 55 W-2720 Rotenburg / DE | 02 /
Szablikowski, Klaus, Dr. Claudiusstrasse 5 W-3030 Walsrode / DE | [1993/20] | Representative(s) | Braun, Rolf, et al Bayer AG Konzernbereich RP Patente und Lizenzen 51368 Leverkusen / DE | [N/P] |
| Former [1993/20] | Braun, Rolf, Dr., et al Bayer AG Konzernverwaltung RP Patentabteilung D-51368 Leverkusen / DE | Application number, filing date | 92116541.1 | 28.09.1992 | [1993/20] | Priority number, date | DE19914133677 | 11.10.1991 Original published format: DE 4133677 | [1993/20] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0541939 | Date: | 19.05.1993 | Language: | DE | [1993/20] | Type: | B1 Patent specification | No.: | EP0541939 | Date: | 10.12.1997 | Language: | DE | [1997/50] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 01.04.1993 | Classification | IPC: | C08B11/187, C08B11/193 | [1993/20] | CPC: |
C08F290/10 (EP,US);
C08B11/193 (EP,US)
| Designated contracting states | BE, DE, FR, GB, IT, NL, SE [1993/20] | Title | German: | 3-Allyloxy-2-hydroxypropyl-ether der Cellulose | [1993/20] | English: | 3-Allyloxy-2-hydroxypropyl ether of cellulose | [1993/20] | French: | Ether 3-allyloxy-2-hydroxypropyl de la cellulose | [1993/20] | Examination procedure | 01.06.1993 | Examination requested [1993/30] | 21.02.1995 | Despatch of a communication from the examining division (Time limit: M04) | 20.06.1995 | Reply to a communication from the examining division | 21.05.1996 | Despatch of a communication from the examining division (Time limit: M06) | 17.10.1996 | Reply to a communication from the examining division | 15.11.1996 | Despatch of a communication from the examining division (Time limit: M04) | 26.02.1997 | Reply to a communication from the examining division | 25.03.1997 | Despatch of communication of intention to grant (Approval: Yes) | 10.06.1997 | Communication of intention to grant the patent | 22.09.1997 | Fee for grant paid | 22.09.1997 | Fee for publishing/printing paid | Opposition(s) | 11.09.1998 | No opposition filed within time limit [1998/49] | Fees paid | Renewal fee | 11.08.1994 | Renewal fee patent year 03 | 11.08.1995 | Renewal fee patent year 04 | 19.08.1996 | Renewal fee patent year 05 | 30.09.1997 | Renewal fee patent year 06 |
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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 | [YD]DE1418924 (KALLE AG) | [YD] - DIE MAKROMOLEKULARE CHEMIE Bd. 177, Nr. 5, 1976, CH Seiten 1301 - 1329 Y. TANAKA ET AL. 'Effects of salts, solvents, and substituents on reaction of cellulose with epoxy compounds' | [XP] - CHEMICAL ABSTRACTS, vol. 117, no. 10 Columbus, Ohio, US; abstract no. 92505d, |