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EP0046281
European procedure
Extract from the Register of European Patents
EP About this file: EP0046281
| EP0046281 - Process for making glass with a preselected refraction index profile having the form of a gradient index profile and a process for making a glass preform for drawing optical fibres for use in the communications industry [Right-click to bookmark this link] | |||
| Former [1982/08] | Process for making glass with a preselected refraction index profile, and alkali-free glass based on an oxide of one element doped with one or several other elements | ||
| [1986/45] | Status | Opposition rejected Status updated on 22.06.1992 Database last updated on 28.03.2026 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states SIEMENS AKTIENGESELLSCHAFT Werner-von-Siemens-Str. 1 DE-80333 München / DE | [N/P] |
| Former [1982/08] | For all designated states SIEMENS AKTIENGESELLSCHAFT Wittelsbacherplatz 2 D-80333 München / DE | Inventor(s) | 01 /
Schneider, Hartmut, Dr. Blütenstrasse 12 D-8000 München 40 / DE | 02 /
Lebetzki, Egon Riemerschmidtstrasse 32 D-8000 München 45 / DE | [1982/08] | Application number, filing date | 81106340.3 | 14.08.1981 | [1982/08] | Priority number, date | DE19803031147 | 18.08.1980 Original published format: DE 3031147 | [1982/08] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0046281 | Date: | 24.02.1982 | Language: | DE | [1982/08] | Type: | B1 Patent specification | No.: | EP0046281 | Date: | 05.11.1986 | Language: | DE | [1986/45] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 18.11.1981 | Classification | IPC: | C03C13/00, G02B6/18 | [1986/45] | CPC: |
C03C13/045 (EP,US);
C03B37/01807 (EP,US);
C03B2201/12 (EP,US);
C03B2201/14 (EP,US);
C03B2201/30 (EP,US);
C03B2201/31 (EP,US);
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| Former IPC [1982/08] | C03C13/00, G02B5/14 | Designated contracting states | AT, BE, CH, FR, GB, IT, LI, NL, SE [1982/08] | Title | German: | Verfahren zum Herstellen von Glas mit einem vorbestimmten Brechzahlprofil in Form eines Gradientenprofils und zum Erzeugen einer Vorform aus Glas zum Ziehen von Lichtleitfasern für die Nachrichtentechnik | [1986/45] | English: | Process for making glass with a preselected refraction index profile having the form of a gradient index profile and a process for making a glass preform for drawing optical fibres for use in the communications industry | [1986/45] | French: | Procédé pour la fabrication d'un verre à profil d'indice de réfraction prédéterminé ayant la forme d'un profil gradient d'indice et procédé d'obtention d'une préforme en verre pour l'étirage de fibres optiques pour la technique des communications | [1986/45] |
| Former [1982/08] | Verfahren zum Herstellen von Glas mit einem vorbestimmten Brechzahlprofil und alkalifreies Glas aus einem Oxid eines Grundstoffes, das mit einem oder mehreren weiteren Stoffen dotiert ist | ||
| Former [1982/08] | Process for making glass with a preselected refraction index profile, and alkali-free glass based on an oxide of one element doped with one or several other elements | ||
| Former [1982/08] | Procédé pour la fabrication d'un verre à profil d'indice de réfraction prédéterminé et verre dépourvu d'alcalis à base d'oxyde d'un élément dopé avec un ou plusieurs autres éléments | Examination procedure | 28.10.1981 | Examination requested [1982/08] | 13.01.1983 | Despatch of a communication from the examining division (Time limit: M06) | 13.07.1983 | Reply to a communication from the examining division | 28.10.1983 | Despatch of a communication from the examining division (Time limit: M02) | 21.12.1983 | Reply to a communication from the examining division | 05.06.1984 | Despatch of a communication from the examining division (Time limit: M02) | 06.08.1984 | Reply to a communication from the examining division | 21.01.1985 | Despatch of a communication from the examining division (Time limit: M02) | 28.03.1985 | Reply to a communication from the examining division | 01.08.1985 | Despatch of communication of intention to grant (Approval: ) | 13.03.1986 | Communication of intention to grant the patent | 26.03.1986 | Fee for grant paid | 26.03.1986 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
31.07.1987
10.09.1987
ADMISSIBLE Koninklijke Philips Electronics N.V. Groenewoudseweg 1 5621 BA Eindhoven / NL Opponent's representative Auwerda, Cornelis Petrus INTERNATIONAAL OCTROOIBUREAU B.V. Prof. Holstlaan 6 NL-5656 AA Eindhoven / NL | [N/P] |
| Former [1987/39] | |||
| Opponent(s) | 01
31.07.1987
10.09.1987
ADMISSIBLE Philips Electronics N.V. Groenewoudseweg 1 NL-5621 BA Eindhoven / NL Opponent's representative Auwerda, Cornelis Petrus INTERNATIONAAL OCTROOIBUREAU B.V. Prof. Holstlaan 6 NL-5656 AA Eindhoven / NL | 27.01.1988 | Communication of observations of patent proprietor (Time limit: M02) | 16.03.1988 | Reply of parties involved to observations of patent proprietor | 15.03.1989 | Despatch of a communication from the opposition division (Time limit: M04) | 18.07.1989 | Reply to a communication from the opposition division | 09.01.1990 | Date of oral proceedings | 14.02.1990 | Despatch of minutes of oral proceedings | 14.02.1990 | Date of despatch of rejection of opposition | 29.04.1992 | Legal effect of rejection of opposition [1992/33] | Appeal following opposition | 13.03.1990 | Appeal received No. T0203/90 | 14.05.1990 | Statement of grounds filed | 29.04.1992 | Result of appeal procedure: appeal of the opponent was rejected | Fees paid | Renewal fee | 26.08.1983 | Renewal fee patent year 03 | 24.08.1984 | Renewal fee patent year 04 | 27.08.1985 | Renewal fee patent year 05 | 26.08.1986 | Renewal fee patent year 06 |
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