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EP0579459
European procedure
Extract from the Register of European Patents
EP About this file: EP0579459
| EP0579459 - Hydrosilylation process for preparation of chlorine end-terminated organosiloxanes [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 20.03.1998 Database last updated on 18.11.2024 | Most recent event Tooltip | 20.03.1998 | No opposition filed within time limit | published on 06.05.1998 [1998/19] | Applicant(s) | For all designated states Dow Corning Corporation 3901 S. Saginaw Road Midland, Michigan 48686-0994 / US | [N/P] |
| Former [1994/03] | For all designated states DOW CORNING CORPORATION 3901 S. Saginaw Road Midland Michigan 48686-0994 / US | Inventor(s) | 01 /
Durfee, Loren Dean 1408 Scott Street Midland, Michigan / US | 02 /
Hilty, Terrence Keith 5107 Natalie Court Midland, Michigan / US | [1994/03] | Representative(s) | Hall, Marina, et al Elkington and Fife Prospect House, 8 Pembroke Road Sevenoaks Kent TN13 1XR / GB | [N/P] |
| Former [1996/24] | Dowden, Marina, et al Elkington and Fife Prospect House, 8 Pembroke Road Sevenoaks, Kent TN13 1XR / GB | ||
| Former [1994/03] | Laredo, Jack Joseph, et al Elkington and Fife Prospect House 8 Pembroke Road Sevenoaks, Kent TN13 1XR / GB | Application number, filing date | 93305378.7 | 08.07.1993 | [1994/03] | Priority number, date | US19920912363 | 13.07.1992 Original published format: US 912363 | [1994/03] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0579459 | Date: | 19.01.1994 | Language: | EN | [1994/03] | Type: | B1 Patent specification | No.: | EP0579459 | Date: | 14.05.1997 | Language: | EN | [1997/20] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 07.09.1993 | Classification | IPC: | C08G77/38, C08G77/46 | [1994/03] | CPC: |
C08G77/385 (EP,US)
| Designated contracting states | DE, FR, GB, IT [1994/03] | Title | German: | Hydrosilylierungsverfahren zur Herstellung von Organosiloxanen mit endständigen Chlorgruppen | [1994/03] | English: | Hydrosilylation process for preparation of chlorine end-terminated organosiloxanes | [1994/03] | French: | Procédé d'hydrosilylation pour la préparation d'organosiloxanes à chlores terminaux | [1994/03] | Examination procedure | 07.03.1994 | Examination requested [1994/18] | 10.10.1995 | Despatch of a communication from the examining division (Time limit: M06) | 11.04.1996 | Reply to a communication from the examining division | 30.04.1996 | Despatch of a communication from the examining division (Time limit: M04) | 03.07.1996 | Reply to a communication from the examining division | 10.09.1996 | Despatch of communication of intention to grant (Approval: Yes) | 11.11.1996 | Communication of intention to grant the patent | 10.01.1997 | Fee for grant paid | 10.01.1997 | Fee for publishing/printing paid | Opposition(s) | 17.02.1998 | No opposition filed within time limit [1998/19] | Fees paid | Renewal fee | 06.06.1995 | Renewal fee patent year 03 | 07.06.1996 | 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 | [X]DE1157611 (DOW CORNING); | [X]US2902507 (HYDE JAMES F, et al); | [A]GB809317 (MIDLAND SILICONES LTD); | [A]US3231594 (SPEIER JOHN L); | [A]US4269992 (LITTERAL CARL J, et al) | [X] - CHEMICAL ABSTRACTS, vol. 89, no. 5, 31 July 1978, Columbus, Ohio, US; abstract no. 43586a, K. A. ANDRIANOV ET AL. 'Synthesis of a,w-dihydroxydialkylsiloxanes' page 652 ; |