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Extract from the Register of European Patents

EP About this file: EP0381328

EP0381328 - Oil hydraulic circuit for hydraulic machine such as a shovel [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  30.03.1995
Database last updated on 24.08.2024
Most recent event   Tooltip30.03.1995No opposition filed within time limitpublished on 17.05.1995 [1995/20]
Applicant(s)For all designated states
KABUSHIKI KAISHA KOBE SEIKO SHO
3-18 Wakinohama-cho 1-chome Chuo-ku
Kobe 651 / JP
[N/P]
Former [1990/32]For all designated states
KABUSHIKI KAISHA KOBE SEIKO SHO
3-18 Wakinohama-cho 1-chome Chuo-ku
Kobe 651 / JP
Inventor(s)01 / Fujii, Kazuhiko
6-14-1, Aita, Asaminami-ku
Hiroshima-shi, Hiroshima-ken / JP
02 / Kubomoto, Wataru
6-4-63, Itsukaichi, Saeki-ku
Hiroshima-shi, Hiroshima-ken / JP
03 / Shimokakiuchi, Hiroshi
7-14-29, Midorii, Asaminami-ku
Hiroshima-shi, Hiroshima-ken / JP
04 / Kouchi, Sumio
1264-91, Tomo, Numato-cho, Asaminami-ku
Hiroshima-shi, Hiroshima-ken / JP
[1990/32]
Representative(s)Blake, John Henry Francis, et al
Brookes Batchellor 1 Boyne Park Tunbridge Wells
Kent TN4 8EL / GB
[N/P]
Former [1993/21]Blake, John Henry Francis, et al
BROOKES AND MARTIN High Holborn House 52/54 High Holborn
London WC1V 6SE / GB
Former [1990/32]Wright, Hugh Ronald
Brookes & Martin 52/54 High Holborn
London WC1V 6SE / GB
Application number, filing date90300440.616.01.1990
[1990/32]
Priority number, dateJP1989002347031.01.1989         Original published format: JP 2347089
[1990/32]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0381328
Date:08.08.1990
Language:EN
[1990/32]
Type: A3 Search report 
No.:EP0381328
Date:24.04.1991
Language:EN
[1991/17]
Type: B1 Patent specification 
No.:EP0381328
Date:25.05.1994
Language:EN
[1994/21]
Search report(s)(Supplementary) European search report - dispatched on:EP06.03.1991
ClassificationIPC:F15B11/16
[1990/32]
CPC:
E02F9/2242 (EP,US); E02F3/16 (KR); E02F9/20 (KR);
E02F9/2292 (EP,US)
Designated contracting statesDE,   ES,   FR,   GB,   IT,   NL [1990/32]
TitleGerman:Ölhydraulikkreis für eine hydraulische Maschine, z.B. einen Löffelbagger[1990/32]
English:Oil hydraulic circuit for hydraulic machine such as a shovel[1990/32]
French:Circuit hydraulique d'huile pour une machine hydraulique comme une pelle[1990/32]
Examination procedure30.01.1990Examination requested  [1990/32]
19.05.1993Despatch of a communication from the examining division (Time limit: M04)
26.07.1993Reply to a communication from the examining division
29.09.1993Despatch of communication of intention to grant (Approval: No)
09.11.1993Despatch of communication of intention to grant (Approval: later approval)
19.11.1993Communication of intention to grant the patent
03.02.1994Fee for grant paid
03.02.1994Fee for publishing/printing paid
Opposition(s)28.02.1995No opposition filed within time limit [1995/20]
Fees paidRenewal fee
21.01.1992Renewal fee patent year 03
30.10.1992Renewal fee patent year 04
13.01.1994Renewal fee patent year 05
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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[X]EP0277602  (FENDT & CO XAVER [DE]);
 [X]US4142445  (LOHBAUER KENNETH R);
 [X]DD209881  (PRUSSEIT PETER, et al);
 [A]US3972185  (MEDINA GLENN J);
 [A]DE3221160  (REXROTH MANNESMANN GMBH [DE]);
 [A]DE3406228  (REXROTH MANNESMANN GMBH [DE])
 [A]  - OELHYDRAULIK & PNEUMATIK vol. 30, no. 9, 1986, pages 644-654, Mainz, DE; W. KLOTZBUECHER: "Auslegung von Hydrauliksystemen nach energetischen Gesichtspunkten unter Berücksichtigung des Lastkollektivs"
 [A]  - MASCHINENMARKT vol. 91, no. 24, 1985, pages 404,405, Würzburg, DE; W. ROEHRS et al.: "Den Leistungsgrad optimieren mit Load-Sensing-Ventilen"
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.