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Extract from the Register of European Patents

EP About this file: EP0656481

EP0656481 - Hydraulic control system for construction machines [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  16.05.1997
Database last updated on 17.08.2024
Most recent event   Tooltip16.05.1997No opposition filed within time limitpublished on 02.07.1997 [1997/27]
Applicant(s)For all designated states
Hitachi Construction Machinery Co., Ltd.
6-2, Ohtemachi 2-chome Chiyoda-ku
Tokyo 100-0004 / JP
[N/P]
Former [1995/23]For all designated states
HITACHI CONSTRUCTION MACHINERY CO., LTD.
6-2, Ohtemachi 2-chome
Chiyoda-ku Tokyo 100 / JP
Inventor(s)01 / Toyooka, Tsukasa
374-126, Yamano, Ogawamachi
Higashiibaraki-gun, Ibaraki-ken / JP
02 / Hirata, Toichi
203, Sakaecho 4-chome, Ushiku-shi
Ibaraki-ken / JP
03 / Sugiyama, Genroku
2337, Miho-mura, Inashiki-gun
Ibaraki-ken / JP
04 / Tatsumi, Akira
22-4, Yushima 2-chome, Bunkyo-ku
Tokyo / JP
[1995/23]
Representative(s)Beetz & Partner mbB
Patentanwälte
Prinzregentenstraße 54
80538 München / DE
[N/P]
Former [1995/23]Patentanwälte Beetz - Timpe - Siegfried Schmitt-Fumian - Mayr
Steinsdorfstrasse 10
D-80538 München / DE
Application number, filing date94118865.830.11.1994
[1995/23]
Priority number, dateJP1993030301902.12.1993         Original published format: JP 30301993
[1995/23]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0656481
Date:07.06.1995
Language:EN
[1995/23]
Type: B1 Patent specification 
No.:EP0656481
Date:10.07.1996
Language:EN
[1996/28]
Search report(s)(Supplementary) European search report - dispatched on:EP23.03.1995
ClassificationIPC:F15B13/02, E02F9/22
[1995/23]
CPC:
E02F9/2246 (EP,US); F15B11/00 (KR); E02F9/22 (KR);
E02F9/2217 (EP,US); E02F9/2296 (EP,US); F15B11/024 (EP,US);
F15B2011/0243 (EP,US); F15B2211/20523 (EP,US); F15B2211/20546 (EP,US);
F15B2211/20576 (EP,US); F15B2211/30505 (EP,US); F15B2211/30525 (EP,US);
F15B2211/3058 (EP,US); F15B2211/3116 (EP,US); F15B2211/31576 (EP,US);
F15B2211/329 (EP,US); F15B2211/40515 (EP,US); F15B2211/41554 (EP,US);
F15B2211/428 (EP,US); F15B2211/45 (EP,US); F15B2211/575 (EP,US);
F15B2211/6309 (EP,US); F15B2211/6346 (EP,US); F15B2211/6651 (EP,US);
F15B2211/67 (EP,US); F15B2211/75 (EP,US) (-)
Designated contracting statesDE,   GB,   IT [1996/20]
Former [1995/23]DE,  FR,  GB,  IT,  SE 
TitleGerman:Hydraulische Steuereinrichtung für Baumaschinen[1995/23]
English:Hydraulic control system for construction machines[1995/23]
French:Système de commande hydraulique pour machines de construction[1995/23]
Examination procedure29.03.1995Examination requested  [1995/23]
04.10.1995Despatch of communication of intention to grant (Approval: Yes)
04.01.1996Communication of intention to grant the patent
27.03.1996Fee for grant paid
27.03.1996Fee for publishing/printing paid
Opposition(s)11.04.1997No opposition filed within time limit [1997/27]
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Documents cited:Search[A]JPH03117704  ;
 [A]EP0445703  (HITACHI CONSTRUCTION MACHINERY [JP], et al) [A] 1 * the whole document *;
 [A]EP0262098  (CHS VICKERS SPA [IT]) [A] 1 * figures 1-5; claim 1 *;
 [A]US5226348  (DEZELAN JOSEPH E [US], et al) [A] 1 * figure 1 *;
 [A]GB2227295  (BAXTER MICHAEL DAVID) [A] 1 * figures 1-4; claim 1 *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19910812), vol. 15, no. 314, Database accession no. (M - 1145), & JP03117704 A 19910520 (YUTANI HEAVY IND.) [A] 1 * 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.