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Extract from the Register of European Patents

EP About this file: EP0561431

EP0561431 - Two-stage joule-thomson cryostat with gas supply management system, and uses thereof [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  09.10.1995
Database last updated on 03.10.2024
Most recent event   Tooltip29.08.2008Change - representativepublished on 01.10.2008  [2008/40]
Applicant(s)For all designated states
Hughes Aircraft Company
7200 Hughes Terrace P.O. Box 45066
Los Angeles, California 90045-0066 / US
[N/P]
Former [1993/38]For all designated states
Hughes Aircraft Company
7200 Hughes Terrace P.O. Box 45066
Los Angeles, California 90045-0066 / US
Inventor(s)01 / Skertic, Matthew M.
9736 Oakdale Avenue
Chatsworth, California 91311 / US
02 / Hlava, Joseph L.
20601 Tiara Street
Woodland Hills, California 91367 / US
[1993/38]
Representative(s)Winter, Brandl - Partnerschaft mbB
Alois-Steinecker-Straße 22
85354 Freising / DE
[N/P]
Former [2008/40]Winter, Brandl, Fürniss, Hübner Röss, Kaiser, Polte Partnerschaft Patent- und Rechtsanwaltskanzlei
Alois-Steinecker-Strasse 22
85354 Freising / DE
Former [1993/38]KUHNEN, WACKER & PARTNER
Alois-Steinecker-Strasse 22
D-85354 Freising / DE
Application number, filing date93109561.601.03.1991
[1993/38]
Priority number, dateUS1990049737922.03.1990         Original published format: US 497379
[1993/38]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0561431
Date:22.09.1993
Language:EN
[1993/38]
Type: A3 Search report 
No.:EP0561431
Date:12.01.1994
Language:EN
[1994/02]
Search report(s)(Supplementary) European search report - dispatched on:EP23.11.1993
ClassificationIPC:F25B9/02, F25B9/10
[1993/38]
CPC:
F25B9/02 (EP,US); F42B15/34 (KR); F25B9/10 (EP,US);
F25B2309/023 (EP,US); F25D2400/28 (EP,US)
Designated contracting statesCH,   DE,   ES,   FR,   GB,   GR,   IT,   LI,   NL,   SE [1993/38]
TitleGerman:Zweistufiger Joule-Thomson-Kryostat mit Gaszufuhrsteuerungssystem und dessen Verwendungen[1993/38]
English:Two-stage joule-thomson cryostat with gas supply management system, and uses thereof[1993/38]
French:Cryostat Joule-Thomson à deux étages avec un système de gestion de l'alimentation en gaz et ses utilisations[1993/38]
Examination procedure26.01.1994Examination requested  [1994/13]
21.10.1994Despatch of a communication from the examining division (Time limit: M07)
01.06.1995Application deemed to be withdrawn, date of legal effect  [1995/48]
29.06.1995Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1995/48]
Parent application(s)   TooltipEP91103126.8  / EP0447861
Fees paidRenewal fee
13.08.1993Renewal fee patent year 03
16.02.1994Renewal fee patent year 04
15.02.1995Renewal fee patent year 05
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]US2909908  (ALEXIS PASTUHOV, et al);
 [A]US2991633  (SIMON FRANK N);
 [XA]US3095711  (WURTZ JR HOWARD P) [X] 1,2 * column 3, line 5 - column 4, line 6; figure 2 * [A] 3-5,7;
 [YA]FR1468862  (AIR LIQUIDE) [Y] 9 * page 1, column R, paragraph 9 - page 3, column L, paragraph 8; figures 1-5 * [A] 1-4;
 [Y]US3372556  (MARVIN WALDMAN) [Y] 10 * column 2, line 48 - column 4, line 11; figures 1-3 *;
 [DYA]US3401533  (BRADLEY MAYBURY ALAN) [DY] 3-5 * column 2, line 18 - column 3, line 38; figure . * [A] 1,2;
 [A]US3413819  (SIEGFRIED HANSEN);
 [XY]US3422632  (CURRIE ROBERT B, et al) [X] 1,2 * column 6, line 25 - column 10, line 39; figures 1-3 * [Y] 3-5,9,10;
 [DA]GB1238911  (THE HYMATIC ENGINEERING) [DA] 1,3 * page 2, line 72 - page 3, line 128; figure . *;
 [A]US4126017  (BYTNIEWSKI JOSEPH, et al)
by applicantUS3401533
 GB1238911
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.