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EP0668514
European procedure
Extract from the Register of European Patents
EP About this file: EP0668514
| EP0668514 - Optical waveguide and process for producing it [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 22.02.2002 Database last updated on 17.07.2024 | Most recent event Tooltip | 22.02.2002 | No opposition filed within time limit | published on 10.04.2002 [2002/15] | Applicant(s) | For all designated states Sumitomo Electric Industries, Ltd. 5-33, Kitahama 4-chome, Chuo-ku Osaka-shi Osaka 541 / JP | [N/P] |
| Former [1995/34] | For all designated states SUMITOMO ELECTRIC INDUSTRIES, LTD. 5-33, Kitahama 4-chome, Chuo-ku Osaka-shi, Osaka 541 / JP | Inventor(s) | 01 /
Ito, Masumi, c/o Yokohama Works Sumitomo Elec. Ind., Ltd, 1, Taya-cho, Sakae-ku Yokohama-shi, Kanagawa 244 / JP | 02 /
Inai, Maki, c/o Yokohama Works Sumitomo Elec. Ind., Ltd, 1, Taya-cho, Sakae-ku Yokohama-shi, Kanagawa 244 / JP | 03 /
Inoue, Akira, c/o Yokohama Works Sumitomo Elec. Ind., Ltd, 1, Taya-cho, Sakae-ku Yokohama-shi, Kanagawa 244 / JP | 04 /
Shigehara, Masakazu, c/o Yokohama Works Sumitomo Elec. Ind., Ltd, 1, Taya-cho, Sakae-ku Yokohama-shi, Kanagawa 244 / JP | [1995/34] | Representative(s) | Lehn, Werner, et al Hoffmann Eitle, Patent- und Rechtsanwälte, Arabellastrasse 4 81925 München / DE | [N/P] |
| Former [1995/34] | Lehn, Werner, Dipl.-Ing., et al Hoffmann, Eitle & Partner, Patentanwälte, Arabellastrasse 4 D-81925 München / DE | Application number, filing date | 95102264.9 | 17.02.1995 | [1995/34] | Priority number, date | JP19940020487 | 17.02.1994 Original published format: JP 2048794 | [1995/34] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0668514 | Date: | 23.08.1995 | Language: | EN | [1995/34] | Type: | A3 Search report | No.: | EP0668514 | Date: | 27.09.1995 | Language: | EN | [1995/39] | Type: | B1 Patent specification | No.: | EP0668514 | Date: | 18.04.2001 | Language: | EN | [2001/16] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 08.08.1995 | Classification | IPC: | G02B6/12, G02B6/16 | [1995/34] | CPC: |
G02B6/124 (EP,US);
G02B6/02119 (EP,US);
G02B6/02133 (EP,US);
G02B6/02138 (EP,US);
G02B6/021 (EP,US)
| Designated contracting states | DE, FR, GB, IT [1995/34] | Title | German: | Optischer Wellenleiter und Verfahren zu seiner Herstellung | [1995/34] | English: | Optical waveguide and process for producing it | [1995/34] | French: | Guide d'onde optique et son procédé de fabrication | [1995/34] | Examination procedure | 03.11.1995 | Examination requested [1996/01] | 31.01.1996 | Despatch of a communication from the examining division (Time limit: M04) | 31.05.1996 | Reply to a communication from the examining division | 14.03.1997 | Despatch of a communication from the examining division (Time limit: M04) | 14.07.1997 | Reply to a communication from the examining division | 19.10.1998 | Despatch of a communication from the examining division (Time limit: M06) | 23.04.1999 | Reply to a communication from the examining division | 05.05.2000 | Despatch of communication of intention to grant (Approval: No) | 22.08.2000 | Despatch of communication of intention to grant (Approval: later approval) | 10.10.2000 | Communication of intention to grant the patent | 10.01.2001 | Fee for grant paid | 10.01.2001 | Fee for publishing/printing paid | Opposition(s) | 19.01.2002 | No opposition filed within time limit [2002/15] | Fees paid | Renewal fee | 27.02.1997 | Renewal fee patent year 03 | 26.02.1998 | Renewal fee patent year 04 | 26.02.1999 | Renewal fee patent year 05 | 16.02.2000 | Renewal fee patent year 06 | 16.02.2001 | 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 | [DA]WO8601303 (UNITED TECHNOLOGIES CORP [US]) [DA] 1,11* the whole document *; | [X]US4820018 (MELMAN PAUL [US], et al) [X] 1,11 * column W *; | [X]WO9400784 (BRITISH TELECOMM [GB], et al) [X] 1-18 * page 3, line 8 - line 17 * * page 4, line 33 - page 5, line 22 * |