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EP0156655
European procedure
Extract from the Register of European Patents
EP About this file: EP0156655
| EP0156655 - Process for the preparation of pyrrolidone derivatives [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 15.09.1989 Database last updated on 08.04.2026 | Most recent event Tooltip | 15.09.1989 | No opposition filed within time limit | published on 02.11.1989 [1989/44] | Applicant(s) | For all designated states I.S.F. Socièta per Azioni Via Leonardo da Vinci, 1 I-20090 Trezzano s/N Milano / IT | [N/P] |
| Former [1985/40] | For all designated states I.S.F. Socièta per Azioni Via Leonardo da Vinci, 1 I-20090 Trezzano s/N Milano / IT | Inventor(s) | 01 /
Pinza, Mario Via per Cesano Boscone 24 I-20094 Corsico Milan / IT | 02 /
Pfeiffer, Ugo Claudio Via Raffaello Sanzio 21 I-20149 Milan / IT | [1985/40] | Representative(s) | Waters, David Martin, et al SmithKline Beecham plc Corporate Intellectual Property SB House Great West Road Brentford, Middlesex TW8 9BD / GB | [N/P] |
| Former [1985/40] | Waters, David Martin, Dr., et al SmithKline Beecham plc Corporate Intellectual Property SB House Great West Road Brentford, Middlesex TW8 9BD / GB | Application number, filing date | 85302244.0 | 01.04.1985 | [1985/40] | Priority number, date | IT19840020358 | 02.04.1984 Original published format: IT 2035884 | [1985/40] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0156655 | Date: | 02.10.1985 | Language: | EN | [1985/40] | Type: | A3 Search report | No.: | EP0156655 | Date: | 05.02.1986 | Language: | EN | [1986/06] | Type: | B1 Patent specification | No.: | EP0156655 | Date: | 23.11.1988 | Language: | EN | [1988/47] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 03.12.1985 | Classification | IPC: | C07D207/273, C07C103/56 | [1985/40] | CPC: |
C07D207/273 (EP,KR,US);
A61P25/28 (EP);
C07D309/12 (EP,US);
Y02P20/55 (EP,US)
| Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE [1985/40] | Title | German: | Verfahren zur Herstellung von Pyrrolidon-Derivaten | [1985/40] | English: | Process for the preparation of pyrrolidone derivatives | [1985/40] | French: | Procédé de préparation de dérivés de pyrrolidone | [1985/40] | Examination procedure | 11.04.1985 | Examination requested [1985/40] | 05.08.1987 | Despatch of a communication from the examining division (Time limit: M04) | 27.11.1987 | Reply to a communication from the examining division | 25.02.1988 | Despatch of communication of intention to grant (Approval: Yes) | 26.05.1988 | Communication of intention to grant the patent | 18.06.1988 | Fee for grant paid | 18.06.1988 | Fee for publishing/printing paid | Opposition(s) | 24.08.1989 | No opposition filed within time limit [1989/44] | Fees paid | Renewal fee | 19.03.1987 | Renewal fee patent year 03 | 18.03.1988 | 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 | [XP] CHEMICAL ABSTRACTS, vol. 101, no. 21, 19th November 1984, page 820, no. 192453y, Columbus, Ohio, US; C. TAKUO et al.: "Studies on amino acid derivatives. III. Preparation of tripeptides and tetrapeptide using acetoacetyl amino acids", & YAKUGAKU ZASSHI 1984, 104(6), 587-91 [XP] |