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EP0247907
European procedure
Extract from the Register of European Patents
EP About this file: EP0247907
| EP0247907 - Metal carbide and nitride powders for ceramics obtained by carbothermal reduction, and process for their manufacture [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 16.07.1994 Database last updated on 25.03.2025 | Most recent event Tooltip | 16.07.1994 | No opposition filed within time limit | published on 07.09.1994 [1994/36] | Applicant(s) | For all designated states ELF ATOCHEM S.A. 4/8, Cours Michelet, La Défense 10 92800 Puteaux Hauts-de-Seine / FR | [N/P] |
| Former [1987/49] | For all designated states ELF ATOCHEM S.A. 4 & 8, Cours Michelet La Défense 10 F-92800 Puteaux / FR | Inventor(s) | 01 /
Bachelard, Roland 99 Grande Rue de la Guillotière F-69007 Lyon / FR | 02 /
Joubert, Philippe 34 Rue Ménival F-69005 Lyon / FR | [1987/49] | Representative(s) | Rochet, Michel, et al ELF ATOCHEM S.A. Département Propriété Industrielle 4-8, Cours Michelet La Défense 10 - Cedex 42 92091 Paris-La-Défense / FR | [N/P] |
| Former [1992/45] | Rochet, Michel, et al ELF ATOCHEM S.A. Département Propriété Industrielle 4-8, Cours Michelet La Défense 10 - Cedex 42 F-92091 Paris-La-Défense / FR | ||
| Former [1987/49] | Rochet, Michel ELF ATOCHEM S.A. Département Propriété Industrielle 4-8, Cours Michelet La Défense 10 - Cedex 42 F-92091 Paris-La-Défense / FR | Application number, filing date | 87400663.8 | 25.03.1987 | [1987/49] | Priority number, date | FR19860004765 | 03.04.1986 Original published format: FR 8604765 | [1987/49] | Filing language | FR | Procedural language | FR | Publication | Type: | A2 Application without search report | No.: | EP0247907 | Date: | 02.12.1987 | Language: | FR | [1987/49] | Type: | A3 Search report | No.: | EP0247907 | Date: | 27.04.1988 | Language: | FR | [1988/17] | Type: | B1 Patent specification | No.: | EP0247907 | Date: | 15.09.1993 | Language: | FR | [1993/37] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 10.03.1988 | Classification | IPC: | C01B21/06, C01B31/30, C01B31/36, C01B21/068, C01B21/072, C01B21/076, C01B21/064, C04B35/58, C04B35/56 | [1987/49] | CPC: |
B82Y30/00 (EP);
C01B21/06 (EP);
C01B21/0685 (EP);
C01B21/0726 (EP);
C01B32/90 (EP);
C01B21/064 (EP);
C01B21/076 (EP);
C01P2002/04 (EP);
C01P2002/60 (EP);
C01P2004/50 (EP);
C01P2004/61 (EP);
C01P2004/64 (EP);
| Designated contracting states | AT, BE, CH, DE, ES, FR, GB, GR, IT, LI, LU, NL, SE [1987/49] | Title | German: | Metallcarbid- und -nitridpulver für Keramiken durch karbothermische Reduktion und Verfahren zu deren Herstellung | [1987/49] | English: | Metal carbide and nitride powders for ceramics obtained by carbothermal reduction, and process for their manufacture | [1987/49] | French: | Poudres pour céramiques en carbures et nitrures métalliques par réduction carbothermique et leur procédé de fabrication | [1987/49] | Examination procedure | 28.03.1987 | Examination requested [1987/49] | 05.04.1990 | Despatch of a communication from the examining division (Time limit: M04) | 02.08.1990 | Reply to a communication from the examining division | 14.11.1991 | Despatch of a communication from the examining division (Time limit: M04) | 09.03.1992 | Reply to a communication from the examining division | 11.12.1992 | Despatch of a communication from the examining division (Time limit: M04) | 30.12.1992 | Reply to a communication from the examining division | 09.02.1993 | Despatch of communication of intention to grant (Approval: Yes) | 18.03.1993 | Communication of intention to grant the patent | 03.06.1993 | Fee for grant paid | 03.06.1993 | Fee for publishing/printing paid | Opposition(s) | 16.06.1994 | No opposition filed within time limit [1994/36] | Fees paid | Renewal fee | 24.04.1989 | Renewal fee patent year 03 | 27.03.1990 | Renewal fee patent year 04 | 30.05.1991 | Renewal fee patent year 05 | 13.03.1992 | Renewal fee patent year 06 | 09.03.1993 | Renewal fee patent year 07 | Penalty fee | Additional fee for renewal fee | 31.03.1989 | 03 M06 Fee paid on 08.07.1989 | 02.04.1991 | 05 M06 Fee paid on 30.05.1991 |
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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 | JP60054910 [ ]; | [X]FR1460778 (DU PONT); | [A]GB1028977 (ERIC CAMPBELL SHEARS); | [XD]US4529575 (ENOMOTO RYO [JP], et al); | [XP]US4626422 (RITSKO JOSEPH E [US], et al) | [ ] - Journal of the American Ceramic Soc., Vol. 67, No. 10, octobre 1984, pages 691-695, Columbus, Ohio, US; S.-C. ZHANG et al.: "Preparation of silicon nitride form silica", page 692, colonne de droite, paragraph III(2), fin d'alinea. | [ ] - CHEMICAL ABSTRACTS, Vol. 103, No. 2, 15 juillet 1985, page 128, Abrege No. 8508n, Columbus, Ohio, US; & JP,A,60 054 910 (CENTRAL GLASS CO. LTD) 29-03-1985, Abrege., & JP60054910 A 00000000 | Examination | JP8554910 | - CHEMICAL ABSTRACTS, vol. 103, no. 2, 15 juillet 1985, page 128, abrégé no. 8508n, Columbus, Ohio, US; & JP-A-85 54 910 (CENTRAL GLASS CO. LTD) 29-03-1985, & JP8554910 A 00000000 |