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EP0462590
European procedure
Extract from the Register of European Patents
EP About this file: EP0462590
| EP0462590 - Hydraulic drive system for civil-engineering and construction machine [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 01.11.1996 Database last updated on 24.07.2024 | Most recent event Tooltip | 01.11.1996 | No opposition filed within time limit | published on 18.12.1996 [1996/51] | 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 [1991/52] | For all designated states HITACHI CONSTRUCTION MACHINERY CO., LTD. 6-2, Ohtemachi 2-chome Chiyoda-ku Tokyo 100 / JP | Inventor(s) | 01 /
Nakamura, Kazunori Tsukuba-Ryo, 2625, Shimoinayoshi Chiyoda-Mura, Niihari-Gun, Ibaraki-Ken / JP | 02 /
Tanaka, Hideaki 9-29, Ottominami 2-Chome Tsuchiura-Shi, Ibaraki-Ken / JP | [1991/52] | Representative(s) | Beetz & Partner mbB Patentanwälte Prinzregentenstraße 54 80538 München / DE | [N/P] |
| Former [1991/52] | Patentanwälte Beetz - Timpe - Siegfried Schmitt-Fumian - Mayr Steinsdorfstrasse 10 D-80538 München / DE | Application number, filing date | 91110047.7 | 19.06.1991 | [1991/52] | Priority number, date | JP19900158744 | 19.06.1990 Original published format: JP 15874490 | [1991/52] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0462590 | Date: | 27.12.1991 | Language: | EN | [1991/52] | Type: | B1 Patent specification | No.: | EP0462590 | Date: | 27.12.1995 | Language: | EN | [1995/52] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 18.09.1991 | Classification | IPC: | F15B11/05 | [1991/52] | CPC: |
E02F9/2235 (EP,US);
F15B11/05 (KR);
E02F9/2232 (EP,US);
E02F9/2296 (EP,US);
F15B11/165 (EP,US);
F15B2211/20538 (EP,US);
F15B2211/20553 (EP,US);
F15B2211/253 (EP,US);
F15B2211/30535 (EP,US);
F15B2211/3111 (EP,US);
F15B2211/3144 (EP,US);
F15B2211/31576 (EP,US);
F15B2211/324 (EP,US);
F15B2211/50536 (EP,US);
F15B2211/71 (EP,US);
Y10T137/87185 (EP,US)
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| Designated contracting states | DE, GB, IT [1995/46] |
| Former [1991/52] | DE, FR, GB, IT, SE | Title | German: | Hydraulisches Antriebssystem für Baumaschinen | [1991/52] | English: | Hydraulic drive system for civil-engineering and construction machine | [1991/52] | French: | Entraînement hydraulique pour des machines pour travaux publics | [1991/52] | Examination procedure | 16.06.1992 | Examination requested [1992/34] | 05.05.1994 | Despatch of a communication from the examining division (Time limit: M06) | 15.11.1994 | Reply to a communication from the examining division | 06.04.1995 | Despatch of communication of intention to grant (Approval: Yes) | 27.06.1995 | Communication of intention to grant the patent | 18.09.1995 | Fee for grant paid | 18.09.1995 | Fee for publishing/printing paid | Opposition(s) | 28.09.1996 | No opposition filed within time limit [1996/51] | Fees paid | Renewal fee | 29.06.1993 | Renewal fee patent year 03 | 30.06.1994 | Renewal fee patent year 04 | 29.06.1995 | Renewal 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 | [Y]US4727793 (HALL LOWELL R [US]); | [A]US4153075 (BUDZICH TADEUSZ); | [A]DE3425304 (BOSCH GMBH ROBERT [DE]); | [A]DE3212947 (BOSCH GMBH ROBERT [DE]) | [Y] - OLHYDRAULIK UND PNEUMATIK. vol. 33, no. 9, 1988, MAINZ DE pages 608 - 613; H. Lödige: "Optimierung eines LS-Wegeventilsystems" |