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Extract from the Register of European Patents

EP About this file: EP0271836

EP0271836 - Filter for removing smoke and toner dust in electrophotographic/electrostatic recording apparatus [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.07.1994
Database last updated on 20.07.2024
Most recent event   Tooltip09.07.1994No opposition filed within time limitpublished on 31.08.1994 [1994/35]
Applicant(s)For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku Kawasaki-shi
Kanagawa 211 / JP
[N/P]
Former [1988/25]For all designated states
FUJITSU LIMITED
1015, Kamikodanaka, Nakahara-ku
Kawasaki-shi, Kanagawa 211 / JP
Inventor(s)01 / Tonomoto, Yoshihiro FUJITSU LTD. Patent Dep.
Kosugi Fujitsu Bd. 1812-10 Shimonumabe Nakahara-ku
Kawasaki-shi Kanagawa 211 / JP
[1988/25]
Representative(s)Sunderland, James Harry, et al
Haseltine Lake LLP Lincoln House 300 High Holborn London
WC1V 7JH / GB
[N/P]
Former [1988/25]Sunderland, James Harry, et al
HASELTINE LAKE & CO Hazlitt House 28 Southampton Buildings Chancery Lane
London WC2A 1AT / GB
Application number, filing date87118382.811.12.1987
[1988/25]
Priority number, dateJP1986029749216.12.1986         Original published format: JP 29749286
[1988/25]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0271836
Date:22.06.1988
Language:EN
[1988/25]
Type: A3 Search report 
No.:EP0271836
Date:07.02.1990
Language:EN
[1990/06]
Type: B1 Patent specification 
No.:EP0271836
Date:08.09.1993
Language:EN
[1993/36]
Search report(s)(Supplementary) European search report - dispatched on:EP22.12.1989
ClassificationIPC:G03G15/20, G03G21/00
[1988/25]
CPC:
B01D46/00 (EP,US); B01D46/0032 (KR); B01D39/14 (EP,US);
B01D46/0001 (KR); B01D46/0038 (KR); B01D46/62 (KR);
B03C3/155 (EP,US); B03C3/64 (EP,US); G03G15/20 (KR);
G03G15/201 (EP,US); G03G21/206 (EP,US); B01D2239/0492 (KR) (-)
Designated contracting statesDE,   FR,   GB [1988/25]
TitleGerman:Filter zum Entfernen von Tonerdampf und -staub in einem elektrofotographischen oder elektrostatischen Aufnahmegerät[1988/25]
English:Filter for removing smoke and toner dust in electrophotographic/electrostatic recording apparatus[1988/25]
French:Filtre pour enlever la fumée et la poussière de toner dans un appareil d'enregistrement électrophotographique ou électrostatique[1988/25]
Examination procedure19.02.1990Examination requested  [1990/17]
26.03.1992Despatch of a communication from the examining division (Time limit: M04)
05.08.1992Reply to a communication from the examining division
04.01.1993Despatch of communication of intention to grant (Approval: Yes)
03.03.1993Communication of intention to grant the patent
28.05.1993Fee for grant paid
28.05.1993Fee for publishing/printing paid
Opposition(s)09.06.1994No opposition filed within time limit [1994/35]
Fees paidRenewal fee
07.12.1989Renewal fee patent year 03
04.12.1990Renewal fee patent year 04
02.12.1991Renewal fee patent year 05
07.12.1992Renewal fee patent year 06
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Documents cited:Search[YD]JP58083879  ;
 [A]FR963621  ;
 [Y]GB1513699  (HITACHI JIDOSHABUHINHANBAI KK, et al);
 [A]US4215682  (DAVIS CHARLES I [US], et al)
 [YD]  - PATENT ABSTRACTS OF JAPAN, vol. 7, no. 180 (P-215)[1325], 9th August 1983; & JP-A-58 083 879 (FUJITSU K.K.) 19-05-1983, & JP58083879 A 00000000
by applicantJPS5567313
 JPS5883879
 JPS60168510
 JPS60168511
 JPS6146215
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.