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Extract from the Register of European Patents

EP About this file: EP0147845

EP0147845 - Method af gas carburizing and herdening and continuous furnace therefor [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  12.01.1989
Database last updated on 22.08.2024
Most recent event   Tooltip12.01.1989No opposition filed within time limitpublished on 01.03.1989 [1989/09]
Applicant(s)For all designated states
Chugai Ro Co., Ltd.
4-7, Kyomachibori 2-chome Nishi-ku Osaka-shi
Osaka-fu / JP
[N/P]
Former [1987/35]For all designated states
Chugai Ro Co., Ltd.
4-7, Kyomachibori 2-chome Nishi-ku
Osaka-shi Osaka-fu / JP
Former [1985/28]For all designated states
Chugai Ro Kogyo Co., Ltd.
4-7, Kyomachibori 2-chome Nishi-ku
Osaka-shi Osaka-fu / JP
Inventor(s)01 / Murakami, Koji
8-11-216, Showaen Settsu-shi
Osaka-fu / JP
02 / Shima, Tsunao
1-3-8, Mayumi Ikoma-shi
Nara-ken / JP
03 / Shimosato, Yoshikazu
14-109, Kakigadani Yahata
Yahata-shi Kyoto-fu / JP
04 / Yokoyama, Akira
537-19, Teraji Seto-cho
Akaiwa-gun Okayama-ken / JP
[1985/28]
Representative(s)Glawe, Delfs, Moll
Partnerschaft mbB von
Patent- und Rechtsanwälten
Postfach 26 01 62
80058 München / DE
[N/P]
Former [1985/28]Glawe, Delfs, Moll & Partner
Patentanwälte Postfach 26 01 62
D-80058 München / DE
Application number, filing date84116330.627.12.1984
[1985/28]
Priority number, dateJP1983024717427.12.1983         Original published format: JP 24717483
[1985/28]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0147845
Date:10.07.1985
Language:EN
[1985/28]
Type: A3 Search report 
No.:EP0147845
Date:26.03.1986
Language:EN
[1986/13]
Type: B1 Patent specification 
No.:EP0147845
Date:16.03.1988
Language:EN
[1988/11]
Search report(s)(Supplementary) European search report - dispatched on:EP04.02.1986
ClassificationIPC:C23C8/22, F27B9/04, C21D1/78
[1986/09]
CPC:
C23C8/06 (EP,US); C23C8/22 (EP,KR,US); C21D1/773 (EP,US);
C21D1/78 (EP,US); C21D9/0062 (EP,US); C23C8/80 (EP,US)
Former IPC [1985/28]C23C8/22, F27B9/04
Designated contracting statesBE,   DE,   FR,   GB,   IT,   SE [1985/28]
TitleGerman:Verfahren zur Gasaufkohlung und Härtung und kontinuierlicher Ofen zur Durchführung dieses Verfahrens[1985/28]
English:Method af gas carburizing and herdening and continuous furnace therefor[1985/28]
French:Procédé de carburation et de durcissement gazeux et four continu pour la réalisation de ce procédé[1985/28]
Examination procedure16.05.1986Examination requested  [1986/31]
16.04.1987Despatch of communication of intention to grant (Approval: )
21.07.1987Communication of intention to grant the patent
02.11.1987Fee for grant paid
02.11.1987Fee for publishing/printing paid
Opposition(s)17.12.1988No opposition filed within time limit [1989/09]
Fees paidRenewal fee
18.12.1986Renewal fee patent year 03
17.12.1987Renewal fee patent year 04
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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]SU530927  ;
 [A]JP58130270  ;
 [A]GB606996  (BIRLEC LTD, et al);
 [A]GB910741  (EFCO FURNACES LTD);
 [A]GB1208134  (GIBBONS BROTHERS LTD);
 [A]FR2083484  (HOLCROFT & CO);
 [A]US3830479  (KNOWLES M);
 [Y]EP0079864  (ITALTRACTOR [IT])
 [Y]  - CHEMICAL ABSTRACTS, vol. 86., 1977, page 235, abstract no. 193810w, Columbus, Ohio, US; & SU - A - 530 927 (A.A. BABAD ZAKHRYAPIN et al.) 05-10-1976, & SU530927 A 00000000
 [A]  - PATENTS ABSTRACTS OF JAPAN, vol. 7, no. 242 (C-192)[1387], 27th October 1983; & JP - A - 58 130 270 (MICHIO SUGIYAMA) 03-08-1983, & JP58130270 A 00000000
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.