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EP0424082
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EP About this file: EP0424082
| EP0424082 - Preceramic organosilicon-boron polymers [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 25.04.1994 Database last updated on 31.08.2024 | Most recent event Tooltip | 25.04.1994 | Application deemed to be withdrawn | published on 15.06.1994 [1994/24] | Applicant(s) | For all designated states MASSACHUSETTS INSTITUTE OF TECHNOLOGY 77 Massachusetts Avenue Cambridge, MA 02139 / US | [1991/17] | Inventor(s) | 01 /
Seyferth, Dietmar 84 Bloomfield Street Lexington, Massachusetts 02173 / US | 02 /
Plenio, Herbert Richard Wagner Strasse 5 W-3420 Herzberg/Harz / DE | [1991/17] | Representative(s) | Bass, John Henton, et al REDDIE & GROSE 16 Theobalds Road London WC1X 8PL / GB | [1991/17] | Application number, filing date | 90311309.0 | 16.10.1990 | [1991/17] | Priority number, date | US19890421586 | 16.10.1989 Original published format: US 421586 | [1991/17] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0424082 | Date: | 24.04.1991 | Language: | EN | [1991/17] | Type: | A3 Search report | No.: | EP0424082 | Date: | 10.07.1991 | Language: | EN | [1991/28] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 23.05.1991 | Classification | IPC: | C08G77/60, C04B35/58 | [1991/17] | CPC: |
C08G77/60 (EP,US);
C04B35/589 (EP,US);
C08G79/00 (EP,US);
C08L83/16 (EP,US)
| Designated contracting states | AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LI, LU, NL, SE [1991/17] | Title | German: | Zur Herstellung von Keramik geeignete Organosilicium-Bor-Polymere | [1991/17] | English: | Preceramic organosilicon-boron polymers | [1991/17] | French: | Polymères organosilicium-bore précurseurs de matière céramique | [1991/17] | File destroyed: | 15.01.2000 | Examination procedure | 10.01.1992 | Examination requested [1992/11] | 07.06.1993 | Despatch of a communication from the examining division (Time limit: M06) | 18.12.1993 | Application deemed to be withdrawn, date of legal effect [1994/24] | 17.01.1994 | Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time [1994/24] | Fees paid | Renewal fee | 18.09.1992 | Renewal fee patent year 03 | Penalty fee | Additional fee for renewal fee | 31.10.1993 | 04 M06 Not yet paid |
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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]EP0262914 (DU PONT [US]); | [XP]EP0389084 (TONEN CORP [JP]); | [E]EP0404503 (TONEN CORP [JP]); | [A]EP0266860 (DOW CORNING [US]) | [XP] - JOURNAL OF THE AMERICAN CERAMIC SOCIETY. vol. 73, no. 7, July 1990, COLUMBUS US pages 2131 - 2133; D. SEYFERTH et al.: "Borasilazane Polymeric Precursors for Borosilicon Nitride" | [A] - INORGANIC CHEMISTRY. vol. 11, no. 12, 1972, EASTON US pages 3082 - 3084; W.M. SCANTLIN et al.: "The Borane-Catalyzed Condensation of Trisilazane and N-Methyldisilazane" |