blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP0523871

EP0523871 - Vacuum vessel having a cooled member [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  11.04.1997
Database last updated on 06.11.2024
Most recent event   Tooltip11.04.1997No opposition filed within time limitpublished on 28.05.1997 [1997/22]
Applicant(s)For all designated states
Hitachi, Ltd.
6, Kanda Surugadai 4-chome
Chiyoda-ku
Tokyo 101 / JP
[N/P]
Former [1993/03]For all designated states
HITACHI, LTD.
6, Kanda Surugadai 4-chome
Chiyoda-ku, Tokyo 101 / JP
Inventor(s)01 / Saho, Norihide
4-12 Tanaka 2-chome
Tsuchiura-shi, Ibaraki 300 / JP
02 / Ogata, Hisanao
3232-2 Shimoinayoshi, Chiyoda-machi
Niihari-gun, Ibaraki 315 / JP
03 / Nemoto, Takeo
4-16 Inayoshi 3-chome, Chiyoda-machi
Niihari-gun, Ibaraki 315 / JP
04 / Uede, Taisei
14-6 Suwa-cho 4-chome
Hitachi-shi, Ibaraki 316 / JP
05 / Yamashita, Yasuo
10-9 Suwa-cho 4-chome
Hitachi-shi, Ibaraki 316 / JP
[1993/03]
Representative(s)Paget, Hugh Charles Edward, et al
Mewburn Ellis LLP
City Tower
40 Basinghall Street
London EC2V 5DE / GB
[N/P]
Former [1994/06]Paget, Hugh Charles Edward, et al
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP / GB
Former [1993/03]Paget, Hugh Charles Edward
MEWBURN ELLIS 2 Cursitor Street
London EC4A 1BQ / GB
Application number, filing date92305833.324.06.1992
[1993/03]
Priority number, dateJP1991017359715.07.1991         Original published format: JP 17359791
[1993/03]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0523871
Date:20.01.1993
Language:EN
[1993/03]
Type: B1 Patent specification 
No.:EP0523871
Date:05.06.1996
Language:EN
[1996/23]
Search report(s)(Supplementary) European search report - dispatched on:EP30.11.1992
ClassificationIPC:F04B37/08, F25B9/00
[1993/03]
CPC:
F02G1/0445 (EP,US); B01J3/006 (EP,US); F04B37/08 (EP,US);
F25B9/00 (EP,US); F02G2250/18 (EP,US); F25B2309/002 (EP,US)
Designated contracting statesDE,   FR,   GB [1993/03]
TitleGerman:Vakuumbehälter mit einem gekühlten Element[1993/03]
English:Vacuum vessel having a cooled member[1993/03]
French:Récipient sous vide avec un élément refroidi[1993/03]
Examination procedure06.08.1992Examination requested  [1993/03]
20.09.1994Despatch of a communication from the examining division (Time limit: M04)
14.11.1994Reply to a communication from the examining division
01.02.1995Despatch of a communication from the examining division (Time limit: M04)
09.06.1995Reply to a communication from the examining division
24.07.1995Despatch of communication of intention to grant (Approval: Yes)
01.12.1995Communication of intention to grant the patent
21.02.1996Fee for grant paid
21.02.1996Fee for publishing/printing paid
Opposition(s)06.03.1997No opposition filed within time limit [1997/22]
Fees paidRenewal fee
22.06.1994Renewal fee patent year 03
02.05.1995Renewal fee patent year 04
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.
Documents cited:Search[A]EP0398156  (SPECTROSPIN AG [CH]);
 [A]FR2321609  (AIR LIQUIDE [FR]);
 [A]US3256706  (SIEGFRIED HANSEN)
 [A]  - vol. 31, no. 3, March 1991, pages 204 - 208 GORBACHEV & KRIKUNOV 'cool-down efficiency of circulation type superconducting devices'
 [A]  - 'IIth symposium of fusion engeneering / proceedings' 18 November 1985 , THE UNIVERSITY OF TEXAS AT AUSTIN , AUSTIN, TEXAS, USA CRYOPUMPS AND CRYOGENIC SYSTEMS FOR JT NEUTRAL BEAM INJECTORS by Shbanuma et al.
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.