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EP0275952
European procedure
Extract from the Register of European Patents
EP About this file: EP0275952
| EP0275952 - Process for preparing 2,6-ditertiarybutyl-4-mercaptophenol and 4,4'-isopropylidenedithiobis-(2,6-di-tertiarybutylphenol) [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 28.05.1992 Database last updated on 02.08.2024 | Most recent event Tooltip | 28.05.1992 | No opposition filed within time limit | published on 15.07.1992 [1992/29] | Applicant(s) | For all designated states MERRELL DOW PHARMACEUTICALS INC. 2110 East Galbraith Road, P.O. Box 156300 Cincinnati Ohio 45215-6300 / US | [N/P] |
| Former [1988/30] | For all designated states MERRELL DOW PHARMACEUTICALS INC. 2110 East Galbraith Road, P.O. Box 156300 Cincinnati Ohio 45215-6300 / US | Inventor(s) | 01 /
Laskovics, F. Marck 814 Coolidge Drive Midland, MI 48640 / US | 02 /
Bargeron, Kim G. 3618 Westbrier Terrace Midland, MI 48640 / US | [1991/30] |
| Former [1988/30] | 01 /
Laskovics, F. Marck 814 Coolidge Drive Midland Michigan 48640 / US | ||
| 02 /
Bargeron, Kim G. 3618 Westbrier Terrace Midland Michigan 48640 / US | Representative(s) | Sgarbi, Renato, et al GRUPPO LEPETIT S.p.A. Patent and Trademark Department Via Roberto Lepetit 34 21040 Gerenzano (VA) / IT | [N/P] |
| Former [1990/41] | Sgarbi, Renato, et al GRUPPO LEPETIT S.p.A. Patent and Trademark Department Via Roberto Lepetit, 34 I-21040 Gerenzano (Varese) / IT | ||
| Former [1988/30] | Macchetta, Francesco Gruppo Lepetit S.p.A. Patent and Trademark Department 34, Via Roberto Lepetit I-21040 Gerenzano (Varese) / IT | Application number, filing date | 88100607.6 | 18.01.1988 | [1988/30] | Priority number, date | US19870005510 | 20.01.1987 Original published format: US 5510 | [1988/30] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0275952 | Date: | 27.07.1988 | Language: | EN | [1988/30] | Type: | B1 Patent specification | No.: | EP0275952 | Date: | 24.07.1991 | Language: | EN | [1991/30] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 16.05.1988 | Classification | IPC: | C07C319/06, C07C323/20 | [1991/30] | CPC: |
C07C323/00 (EP);
C07C319/06 (KR)
|
| Former IPC [1988/30] | C07C149/36, C07C148/00 | Designated contracting states | AT, BE, CH, DE, ES, FR, GB, GR, IT, LI, LU, NL, SE [1988/30] | Title | German: | Verfahren zur Herstellung von 2,6-Di-tert.butyl-4-mercaptophenol und von 4,4'-Isopropylidendithio-bis-(2,6-di-tert.butyphenol) | [1988/30] | English: | Process for preparing 2,6-ditertiarybutyl-4-mercaptophenol and 4,4'-isopropylidenedithiobis-(2,6-di-tertiarybutylphenol) | [1988/30] | French: | Procédé de la préparation du ditertiobutyl-2,6 mercapto-4 phénol et de l'isopropylidènedithio-4,4'-bis(ditertiobutyl-2,6 phénol) | [1988/30] | Examination procedure | 12.01.1989 | Examination requested [1989/11] | 06.04.1990 | Despatch of a communication from the examining division (Time limit: M02) | 28.05.1990 | Reply to a communication from the examining division | 25.07.1990 | Despatch of communication of intention to grant (Approval: No) | 10.12.1990 | Despatch of communication of intention to grant (Approval: later approval) | 28.12.1990 | Communication of intention to grant the patent | 12.03.1991 | Fee for grant paid | 12.03.1991 | Fee for publishing/printing paid | Opposition(s) | 25.04.1992 | No opposition filed within time limit [1992/29] | Fees paid | Renewal fee | 12.12.1989 | Renewal fee patent year 03 | 18.12.1990 | 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 | US3275694 [ ] (WILLI HAHN, et al); | US3479407 [ ] (LAUFER ROBERT J); | GB1199871 [ ] (CONSOLIDATION COAL CO [US]); | US3576883 [ ] (NEUWORTH MARTIN B); | US3952064 [ ] (WHALLEY WILLIAM G); | EP0200212 [ ] (SEITETSU KAGAKU CO LTD [JP]) | [ ] - HOUBEN-WEYL, "Methoden der Organischen Chemie", Vol. IX, 1955 Georg Thieme Verlag, Stuttgart * pages 23-29 * |