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EP0139257
European procedure
Extract from the Register of European Patents
EP About this file: EP0139257
| EP0139257 - Process for the manufacture of silicon carbide [Right-click to bookmark this link] | |||
| Former [1985/18] | Branched polysilahydrocarbon precursors for silicon carbide | ||
| [1990/48] | Status | No opposition filed within time limit Status updated on 28.09.1991 Database last updated on 28.06.2024 | Most recent event Tooltip | 28.09.1991 | No opposition filed within time limit | published on 21.11.1991 [1991/47] | Applicant(s) | For all designated states UNION CARBIDE CORPORATION 39 Old Ridgebury Road Danbury Connecticut 06817 / US | [N/P] |
| Former [1985/18] | For all designated states UNION CARBIDE CORPORATION 39 Old Ridgebury Road Danbury Connecticut 06817 / US | Inventor(s) | 01 /
Schilling, Curtis Louis, Jr. 33 Sunset Drive Croton-on-Hudson New York 10520 / US | 02 /
Williams, Thomas Charles 16 Rolling Hill Road Ridgefield Connecticut 06877 / US | [1985/18] | Representative(s) | Wuesthoff, Franz, et al Wuesthoff & Wuesthoff Patent- und Rechtsanwälte Schweigerstrasse 2 81541 München / DE | [N/P] |
| Former [1985/18] | Wuesthoff, Franz, Dr.-Ing., et al Wuesthoff & Wuesthoff Patent- und Rechtsanwälte Schweigerstrasse 2 D-81541 München / DE | Application number, filing date | 84111660.1 | 28.09.1984 | [1985/18] | Priority number, date | US19830537672 | 30.09.1983 Original published format: US 537672 | [1985/18] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0139257 | Date: | 02.05.1985 | Language: | EN | [1985/18] | Type: | A3 Search report | No.: | EP0139257 | Date: | 30.12.1986 | Language: | EN | [1986/52] | Type: | B1 Patent specification | No.: | EP0139257 | Date: | 28.11.1990 | Language: | EN | [1990/48] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 04.11.1986 | Classification | IPC: | C08G77/60, C01B31/36 | [1985/18] | CPC: |
C04B35/571 (EP,US);
C01B32/977 (EP,US);
C08G77/60 (EP);
C01P2006/80 (EP)
| Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE [1985/18] | Title | German: | Verfahren zur Herstellung von Siliciumcarbid | [1990/48] | English: | Process for the manufacture of silicon carbide | [1990/48] | French: | Procédé pour manufacture de carbure de silicium | [1990/48] |
| Former [1985/18] | Verzweigte Polycarbosilane als Vorläufer für Siliciumcarbid | ||
| Former [1985/18] | Branched polysilahydrocarbon precursors for silicon carbide | ||
| Former [1985/18] | Polycarbosilanes ramifiés comme précurseurs de carbure de silicium | Examination procedure | 15.01.1987 | Examination requested [1987/12] | 12.10.1988 | Despatch of a communication from the examining division (Time limit: M07) | 28.04.1989 | Reply to a communication from the examining division | 10.07.1989 | Despatch of a communication from the examining division (Time limit: M04) | 11.10.1989 | Reply to a communication from the examining division | 19.02.1990 | Despatch of communication of intention to grant (Approval: Yes) | 29.05.1990 | Communication of intention to grant the patent | 29.08.1990 | Fee for grant paid | 29.08.1990 | Fee for publishing/printing paid | Opposition(s) | 29.08.1991 | No opposition filed within time limit [1991/47] | Fees paid | Renewal fee | 18.06.1986 | Renewal fee patent year 03 | 22.05.1987 | Renewal fee patent year 04 | 13.06.1988 | Renewal fee patent year 05 | 21.06.1989 | Renewal fee patent year 06 | 18.06.1990 | Renewal fee patent year 07 |
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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 | [AD]US3187032 (WEYENBERG DONALD R); | [A]US3439014 (PATTON ROBERT, et al); | [A]EP0052694 (UNION CARBIDE CORP [US]) |