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Extract from the Register of European Patents

EP About this file: EP0909743

EP0909743 - Opaque silica glass article having transparent portion and process for producing same [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  05.05.2006
Database last updated on 15.06.2024
Most recent event   Tooltip05.05.2006Patent maintained (B2 publication)published on 07.06.2006  [2006/23]
Applicant(s)For all designated states
TOSOH CORPORATION
4560, Kaisei-cho Shinnanyo-shi
Yamaguchi-ken, 746-8501 / JP
For all designated states
Tosoh Quartz Corporation
1435, Tachiyagawa 3-chome Yamagata-shi
Yagamata 990-2251 / JP
[2006/23]
Former [2001/39]For all designated states
Tosoh Corporation
4560, Kaisei-cho
Shinnanyo-shi, Yamaguchi-ken, 746-8501 / JP
For all designated states
Tosoh Quartz Corporation
1435, Tachiyagawa 3-chome
Yamagata-shi, Yagamata 990-2251 / JP
Former [1999/16]For all designated states
Tosoh Corporation
4560, Kaisei-cho
Shinnanyo-shi, Yamaguchi-ken, 746-8501 / JP
For all designated states
NIPPON SILICA GLASS CO., LTD.
2-4 Kyobashi, 3-chome
Chuo-ku, Tokyo 104 / JP
Inventor(s)01 / Nagata, Hiroya
302, 10-39, Okada 1-chome
Asugi-shi, Kanagawa, 243-0021 / JP
02 / Kudo, Masayuki, 206, Tosoh Corporation Machida-Ryo
18-6, Nakamachi 3-chome, Machida-shi
Tokyo, 194-0021 / JP
03 / Tsukuma, Koji
20-7, Matsushiro 1-chome
Tsukuba-shi, Ibaraki, 305-0035 / JP
04 / Kikuchi, Yoshikazu
43-7, Tsuruta
Sagae-shi, Yamagata, 991-0000 / JP
05 / Akiyama, Tomoyuki
309, 11-16, Sakuradahigashi 2-chome
Yamagata-shi, Yamagata 990-2323 / JP
[1999/16]
Representative(s)TBK
Bavariaring 4-6
80336 München / DE
[N/P]
Former [2005/34]TBK-Patent
Bavariaring 4-6
80336 München / DE
Former [2001/14]Leson, Thomas Johannes Alois, Dipl.-Ing., et al
Patentanwälte Tiedtke-Bühling-Kinne & Partner, Bavariaring 4
80336 München / DE
Former [1999/16]Bühling, Gerhard, Dipl.-Chem., et al
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
80336 München / DE
Application number, filing date98119541.515.10.1998
[1999/16]
Priority number, dateJP1997028350616.10.1997         Original published format: JP 28350697
JP1998001424827.01.1998         Original published format: JP 1424898
[1999/16]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0909743
Date:21.04.1999
Language:EN
[1999/16]
Type: B1 Patent specification 
No.:EP0909743
Date:30.01.2002
Language:EN
[2002/05]
Type: B2 New European patent specification 
No.:EP0909743
Date:07.06.2006
Language:EN
[2006/23]
Search report(s)(Supplementary) European search report - dispatched on:EP04.03.1999
ClassificationIPC:C03C3/06, C03C11/00
[1999/16]
CPC:
C03B19/09 (EP,US); C03C11/007 (EP,US); C03C3/06 (EP,US);
C03C2201/24 (EP,US); C03C2201/80 (EP,US); C03C2203/10 (EP,US);
Y10S65/08 (EP,US); Y10T428/1317 (EP,US); Y10T428/249969 (EP,US) (-)
Designated contracting statesDE,   FR,   GB [2000/01]
Former [1999/16]AT,  BE,  CH,  CY,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Undurchsichtiger Silikatglasgegenstand mit durchsichtigem Bereich und Verfahren zu dessen Herstellung[1999/16]
English:Opaque silica glass article having transparent portion and process for producing same[1999/16]
French:Article en verre de silice opaque comprenant une partie transparente et procédé pour sa production[1999/16]
Examination procedure25.08.1999Examination requested  [1999/42]
11.12.2000Despatch of communication of intention to grant (Approval: Yes)
06.03.2001Communication of intention to grant the patent
07.06.2001Fee for grant paid
07.06.2001Fee for publishing/printing paid
Opposition(s)Opponent(s)01  30.10.2002  11.11.2002  ADMISSIBLE
Heraeus Quarzglas GmbH & Co.KG
Quarzstrasse 8
63450 Hanau / DE
 [2003/01]
05.12.2002Invitation to proprietor to file observations on the notice of opposition
14.04.2003Reply of patent proprietor to notice(s) of opposition
26.04.2005Legal effect of interlocutory decision in opposition
26.04.2005Date of oral proceedings
11.05.2005Despatch of interlocutory decision in opposition
11.05.2005Despatch of minutes of oral proceedings
29.08.2005Despatch of communication that the patent will be maintained as amended
27.03.2006Fee for printing new specification paid
Fees paidRenewal fee
30.10.2000Renewal fee patent year 03
30.10.2001Renewal fee patent year 04
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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  TooltipFR30.01.2002
[2006/14]
Former [2003/33]FR15.11.2002
Documents cited:Search[PX]EP0816297  (TOSOH CORP [JP]) [PX] 1-4 * page 2, line 4 * * page 2, line 54 - page 3, line 1 * * page 9, line 47 - line 49 *;
 [A]JPH08104540  ;
 [AD]JPH0465328  ;
 [A]US5651827  (AOYAMA MASAAKI [JP], et al) [A] 1,2 * column 3, line 31 - line 41 * * column 4, line 8 - line 18 * * column 4, line 24 - line 26 * * column 5, line 34 - line 51 * * column 8, line 3 - line 64 * * column 10, line 22 - column 11, line 22 *;
 [A]DE4440104  (HERAEUS QUARZGLAS [DE]) [A] 1-3 * column 1, line 51 - column 3, line 60 * * column 5, line 2 - column 6, line 15 *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19960830), vol. 096, no. 008, & JP08104540 A 19960423 (SHINETSU QUARTZ PROD CO LTD) [A] 1-7 * abstract *
 [AD]  - PATENT ABSTRACTS OF JAPAN, (19920616), vol. 016, no. 265, Database accession no. (C - 0951), & JP04065328 A 19920302 (NIHON SEKIEI GARASU KK;OTHERS: 01) [AD] 1-7 * abstract *
ExaminationEP0647600
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.