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Extract from the Register of European Patents

EP About this file: EP0629590

EP0629590 - Process for producing glass preform for optical fiber [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  27.02.1998
Database last updated on 03.10.2024
Most recent event   Tooltip10.07.2004Change - lapse in a contracting state
Updated state(s): FR		published on 25.08.2004  [2004/35]
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 [1996/48]For all designated states
SUMITOMO ELECTRIC INDUSTRIES, LTD.
5-33, Kitahama 4-chome, Chuo-ku
Osaka-shi, Osaka 541 / JP
Former [1994/51]For all designated states
SUMITOMO ELECTRIC INDUSTRIES, LIMITED
5-33, Kitahama 4-chome Chuo-ku
Osaka 541 / JP
Inventor(s)01 / Ishikawa, Shinji, c/o Yokohama Works
Sumitomo Electric Ind., Ltd, 1, Taya-cho
Sakae-ku, Yokohama-shi, Kanagawa 244 / JP
[1994/51]
Representative(s)Hansen, Bernd, et al
Hoffmann Eitle Patent- und Rechtsanwälte Arabellastrasse 4
81925 München / DE
[N/P]
Former [1994/51]Hansen, Bernd, Dr. Dipl.-Chem., et al
Hoffmann, Eitle & Partner, Patentanwälte, Arabellastrasse 4
D-81925 München / DE
Application number, filing date94109292.616.06.1994
[1994/51]
Priority number, dateJP1993014474616.06.1993         Original published format: JP 14474693
[1994/51]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0629590
Date:21.12.1994
Language:EN
[1994/51]
Type: B1 Patent specification 
No.:EP0629590
Date:23.04.1997
Language:EN
[1997/17]
Search report(s)(Supplementary) European search report - dispatched on:EP18.10.1994
ClassificationIPC:C03B37/014
[1994/51]
CPC:
C03B37/0148 (EP,US); C03B37/012 (KR); Y02P40/57 (EP,US)
Designated contracting statesDE,   FR,   GB [1994/51]
TitleGerman:Verfahren zum Herstellen einer Glasvorform für optische Fasern[1994/51]
English:Process for producing glass preform for optical fiber[1994/51]
French:Procédé de fabrication d'une préforme de verre pour fibres optiques[1994/51]
Examination procedure16.02.1995Examination requested  [1995/16]
07.03.1995Despatch of a communication from the examining division (Time limit: M04)
07.07.1995Reply to a communication from the examining division
10.11.1995Despatch of a communication from the examining division (Time limit: M04)
20.03.1996Reply to a communication from the examining division
22.07.1996Despatch of communication of intention to grant (Approval: Yes)
14.10.1996Communication of intention to grant the patent
09.01.1997Fee for grant paid
09.01.1997Fee for publishing/printing paid
Opposition(s)24.01.1998No opposition filed within time limit [1998/16]
Fees paidRenewal fee
28.06.1996Renewal fee patent year 03
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipFR23.04.1997
DE24.07.1997
[2004/35]
Former [1998/03]DE24.07.1997
FR19.09.1997
Documents cited:Search[XAY]JPH02243531  ;
 [XA]JPS61281037  ;
 [XY]JPS6379731  ;
 [X]JPS63291832  ;
 [XA]JPS6060935  ;
 [X]JPS57160927  ;
 [X]JPS60200835  ;
 [X]JPH03247532  ;
 [X]JPS6479034  ;
 [X]JPS63182232  ;
 [X]JPS62158130  ;
 [X]EP0367871  (CORNING GLASS WORKS [US]) [X] 1-3,17 * column 10, line 47 - column 11, line 10; figure 4 *;
 [XA]JPH0218334  ;
 [XA]JPS62297239  ;
 [X]JPS58176138  ;
 [X]JPS6479033  ;
 [X]JPS60264338  ;
 [X]JPH01239034  ;
 [X]JPS63123830
 [XAY]  - PATENT ABSTRACTS OF JAPAN, (19901213), vol. 14, no. 562, Database accession no. (C - 788), & JP02243531 A 19900927 (FUJIKURA LTD.) [X] 1-12,17 * abstract; page 180, middle of upper left-hand side and upper right-hand side to lower left-hand side * [A] 13 [Y] 16
 [XA]  - PATENT ABSTRACTS OF JAPAN, (19870508), vol. 11, no. 141, Database accession no. (C - 421), & JP61281037 A 19861211 (SUMITOMO ELECTRIC INDUSTRIES LTD.) [X] 1-3,11,17 * abstract; page 241, lower left-hand side * [A] 14
 [XY]  - PATENT ABSTRACTS OF JAPAN, (19880819), vol. 12, no. 306, Database accession no. (C - 522), & JP63079731 A 19880409 (SUMITOMO ELECTRIC INDUSTRIES LTD.) [X] 1-3,15,17 * abstract; page 173 * [Y] 16
 [X]  - PATENT ABSTRACTS OF JAPAN, (19890323), vol. 13, no. 119, Database accession no. (C - 579), & JP63291832 A 19881129 (FUJIKURA LTD.) [X] 1-3,15,17 * abstract *
 [XA]  - PATENT ABSTRACTS OF JAPAN, (19850808), vol. 9, no. 192, Database accession no. (C - 296), & JP60060935 A 19850408 (FURUKAWA ELECTRIC CO.LTD.) [X] 1-3,11,14,17 * abstract; table on page 188; figures 1,2 * [A] 13
 [X]  - PATENT ABSTRACTS OF JAPAN, (19830107), vol. 7, no. 3, Database accession no. (C - 143), & JP57160927 A 00000000 (NTT CORP.) [X] 1-3,11,14,17 * abstract; page 198, upper right-hand side *
    [ ] - CHEMICAL ABSTRACTS, (19830418), vol. 98, no. 16, Database accession no. 131155a, page 297, column R [ ] * abstract *
 [X]  - PATENT ABSTRACTS OF JAPAN, (19860313), vol. 10, no. 63, Database accession no. (C - 332), & JP60200835 A 19851011 (SUMITOMO ELECTRIC INDUSTRIES LTD.) [X] 1-5,11 * abstract *
 [X]  - PATENT ABSTRACTS OF JAPAN, (19920131), vol. 16, no. 40, Database accession no. (C - 906), & JP03247532 A 19911105 (FURUKAWA ELECTRIC CO.LTD.) [X] 1-3,17 * abstract *
 [X]  - PATENT ABSTRACTS OF JAPAN, (19890628), vol. 13, no. 283, Database accession no. (C - 612), & JP01079034 A 19890324 (SUMITOMO ELECTRIC INDUSTRIES LTD.) [X] 1-3,17 * abstract *
 [X]  - PATENT ABSTRACTS OF JAPAN, (19881205), vol. 12, no. 462, Database accession no. (C - 549), & JP63182232 A 19880727 (HITACHI CABLE LTD.) [X] 1-3,17 * abstract *
 [X]  - PATENT ABSTRACTS OF JAPAN, (19871225), vol. 11, no. 398, Database accession no. (C - 466), & JP62158130 A 19870714 (HITACHI CABLE LTD.) [X] 1-3,17 * abstract *
 [XA]  - PATENT ABSTRACTS OF JAPAN, (19900320), vol. 14, no. 146, Database accession no. (C - 704), & JP02018334 A 19900122 (FUJIKURA LTD.) [X] 1-3,17 * abstract * [A] 11
 [XA]  - PATENT ABSTRACTS OF JAPAN, (19880603), vol. 12, no. 191, Database accession no. (C - 501), & JP62297239 A 19871224 (SUMITOMO ELECTRIC INDUSTRIES LTD.) [X] 1-3,17 * abstract * [A] 11
 [X]  - PATENT ABSTRACTS OF JAPAN, (19840112), vol. 8, no. 7, Database accession no. (C - 204), & JP58176138 A 19831015 (NTT CORP.) [X] 1,3,17 * abstract *
 [X]  - PATENT ABSTRACTS OF JAPAN, (19890628), vol. 13, no. 283, Database accession no. (C - 612), & JP01079033 A 19890324 (SUMITOMO ELECTRIC INDUSTRIES LTD.) [X] 1-3,17 * abstract *
 [X]  - PATENT ABSTRACTS OF JAPAN, (19860522), vol. 10, no. 139, Database accession no. (C - 348), & JP60264338 A 19851227 (FURUKAWA ELECTRIC CO.LTD.) [X] 1-3,17 * abstract *
 [X]  - PATENT ABSTRACTS OF JAPAN, (19891219), vol. 13, no. 575, Database accession no. (C - 667), & JP01239034 A 19890925 (FUJIKURA LTD.) [X] 1-3,17 * abstract *
 [X]  - PATENT ABSTRACTS OF JAPAN, (19881006), vol. 12, no. 378, Database accession no. (C - 534), & JP63123830 A 19880527 (FUJIKURA LTD.) [X] 1-3,17 * abstract *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.