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EP0006044
European procedure
Extract from the Register of European Patents
EP About this file: EP0006044
| EP0006044 - Process for producing optical fibres having a radial gradient index of refraction [Right-click to bookmark this link] | |||
| Former [1981/39] | Process for producing optical fibres having a radial gradient index of refraction and an optical fibre produced by this process | ||
| [1981/39] | Status | No opposition filed within time limit Status updated on 14.09.2016 Database last updated on 19.04.2025 | Most recent event Tooltip | 14.09.2016 | No opposition filed within time limit | Applicant(s) | For all designated states THOMSON-CSF 173, Boulevard Haussmann F-75008 Paris / FR | [1982/21] |
| Former [1980/12] | For all designated states THOMSON-CSF 173, Boulevard Haussmann F-75008 Paris / FR | ||
| Former [1980/12] | For all designated states THOMSON-CSF 173, boulevard Haussmann F-75379 Paris Cédex 08 / FR | Inventor(s) | 01 /
De Panafieu, Arnaud "THOMSON-CSF" - SCPI 173, bld Haussmann F-75360 Paris Cedex 08 / FR | 02 /
Baylac, Christiane "THOMSON-CSF" - SCPI 173, bld Haussman F-75360 Paris Cedex 08 / FR | 03 /
Nemaud, Yves "THOMSON-CSF" - SCPI 173, bld Haussmann F-75360 Paris Cedex 08 / FR | 04 /
Turpin, Marc "THOMSON-CSF" - SCPI 173, bld Haussmann F-75360 Paris Cedex 08 / FR | 05 /
Faure, Michel "THOMSON-CSF" - SCPI 173, bld Haussmann F-75360 Paris Cedex 08 / FR | [N/P] | Representative(s) | Giraud, Pierre, et al THOMSON-CSF SCPI 173, Bld Haussmann 75379 Paris Cedex 08 / FR | [N/P] |
| Former [1981/39] | Giraud, Pierre, et al THOMSON-CSF SCPI 173, Bld Haussmann F-75379 Paris Cedex 08 / FR | Application number, filing date | 79400308.7 | 16.05.1979 | Priority number, date | FR19780016035 | 30.05.1978 Original published format: FR 7816035 | Filing language | FR | Procedural language | FR | Publication | Type: | A1 Application with search report | No.: | EP0006044 | Date: | 12.12.1979 | Language: | FR | [N/P] | Type: | B1 Patent specification | No.: | EP0006044 | Date: | 30.09.1981 | Language: | FR | [1981/39] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 27.09.1979 | Classification | IPC: | C03B37/02, C03C13/00, C03C15/00, G02B5/14 | [1981/39] | CPC: |
C03C13/045 (EP,US);
C03C13/046 (EP,US);
C03C15/00 (EP,US);
C03C23/008 (EP,US);
G02B6/0281 (EP,US)
| Designated contracting states | DE, GB, IT, NL, SE | Title | German: | Verfahren zur Herstellung von Lichtleitfasern mit radialem Brechungsindexgradienten | [1981/39] | English: | Process for producing optical fibres having a radial gradient index of refraction | [1981/39] | French: | Procédé de fabrication de fibres optiques à gradient radial d'indice de réfraction | [1981/39] |
| Former [1981/39] | Verfahren zur Herstellung von Lichtleitfasern mit radialem Brechungsindexgradienten und nach diesem Verfahren hergestellte Lichtleitfaser | ||
| Former [1981/39] | Process for producing optical fibres having a radial gradient index of refraction and an optical fibre produced by this process | ||
| Former [1981/39] | Procédé de fabrication de fibres optiques à gradient radial d'indice de réfraction, et fibre optique obtenue par ce procédé | Examination procedure | 21.12.1979 | Examination requested [1980/06] | 15.10.1980 | Despatch of a communication from the examining division (Time limit: M02) | 10.11.1980 | Reply to a communication from the examining division | 27.01.1981 | Despatch of communication of intention to grant (Approval: ) | 10.03.1981 | Communication of intention to grant the patent | 09.05.1981 | Fee for grant paid | 09.05.1981 | Fee for publishing/printing paid | Opposition(s) | 30.06.1982 | No opposition filed within time limit [ N /P ] | Fees paid | Renewal fee | 25.04.1981 | Renewal fee patent year 03 |
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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 | FR2178038 [ ] (CORNING GLASS WORKS [US]); | FR2368444 [ ] (THOMSON CSF [FR]); | FR2301489 [ ] (JENAER GLASWERK SCHOTT & GEN [DE]); | FR2227234 [ ] (MACEDO PEDRO DE [US]); | FR2021614 [ ] (NIPPON SELFOC CO LTD) | [ ] - NTG-FACHBERICHTE, Volume 59, 1977, Third European Conference on Optical Communication, 14-16 Setembre 1977, Munich (VDE-VerlagBerlin) A. DE PANAFIEU et al "Direct fabrication of medium-loss graded-index preforms by the phase separation and leaching technique" pages 21 a 23. |