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Extract from the Register of European Patents

EP About this file: EP0232060

EP0232060 - Process for the preparation of porous polyolefin films [Right-click to bookmark this link]
Former [1987/33]Porous polyolefin films and preparation process thereof
[1991/36]
StatusNo opposition filed within time limit
Status updated on  09.07.1992
Database last updated on 19.07.2024
Most recent event   Tooltip09.07.1992No opposition filed within time limitpublished on 26.08.1992 [1992/35]
Applicant(s)For all designated states
MITSUI TOATSU CHEMICALS, Inc.
2-5 Kasumigaseki 3-chome Chiyoda-Ku
Tokyo 100 / JP
[N/P]
Former [1987/33]For all designated states
MITSUI TOATSU CHEMICALS, Inc.
2-5 Kasumigaseki 3-chome
Chiyoda-Ku Tokyo 100 / JP
Inventor(s)01 / Aoyama, Mari
29, Kitanishinaka, Fukuokacho
Okazaki-shi Aichi-ken / JP
02 / Ito, Michiyasu
68, Hoshikawa
Kuwana-shi Mie-ken / JP
03 / Tsuji, Syoichi
Mitsui Toatsu Taki Ap A-22 5,Takiharucho,Minami-ku
Nagoya-shi Aichi-ken / JP
04 / Ishii, Toshiyuki
88 Myoukeicho 2-chome
Kasugai-shi Aichi-ken / JP
05 / Tanaka, Tomohide
158 Issha 2-chome Meitou-ku
Nagoya-shi Aichi-ken / JP
[1987/33]
Representative(s)Griffin, Kenneth David, et al
Saunders & Dolleymore LLP 9 Rickmansworth Road Watford
WD18 0JU / GB
[N/P]
Former [1987/33]Griffin, Kenneth David, et al
Saunders & Dolleymore 9, Rickmansworth Road
Watford Hertfordshire WD1 7HE / GB
Application number, filing date87300489.921.01.1987
[1987/33]
Priority number, dateJP1986000888821.01.1986         Original published format: JP 888886
JP1986012130028.05.1986         Original published format: JP 12130086
JP1986030872326.12.1986         Original published format: JP 30872386
JP1986030872426.12.1986         Original published format: JP 30872486
[1987/33]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0232060
Date:12.08.1987
Language:EN
[1987/33]
Type: A3 Search report 
No.:EP0232060
Date:22.06.1988
Language:EN
[1988/25]
Type: B1 Patent specification 
No.:EP0232060
Date:04.09.1991
Language:EN
[1991/36]
Search report(s)(Supplementary) European search report - dispatched on:EP03.05.1988
ClassificationIPC:C08J5/18
[1988/18]
CPC:
C08J5/18 (EP,KR,US); B29C55/18 (KR); B29C55/02 (EP,US);
B29C59/04 (EP,US); C08K3/013 (EP,US); B29C2059/023 (EP,US);
B29C2791/001 (EP,US); B29K2023/00 (EP,US); B29K2105/04 (EP,US);
B29K2105/16 (EP,US); B29K2995/0065 (EP,US); B29K2995/0072 (EP,US);
C08J2323/02 (EP,US); Y10S264/47 (EP,US) (-)
C-Set:
C08K3/013, C08L23/02 (EP,US)
Former IPC [1987/33]B29C55/02, C08J5/18
Designated contracting statesCH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1987/33]
TitleGerman:Verfahren zur Herstellungvon Poröse Polyolefinfolien[1991/36]
English:Process for the preparation of porous polyolefin films[1991/36]
French:Méthode pour la préparationdes films poreux en polyoléfine[1991/36]
Former [1987/33]Poröse Polyolefinfolien und Verfahren zu deren Herstellung
Former [1987/33]Porous polyolefin films and preparation process thereof
Former [1987/33]Films poreux en polyoléfine et méthode pour leur préparation
Examination procedure29.01.1987Examination requested  [1987/33]
20.10.1989Despatch of a communication from the examining division (Time limit: M04)
19.02.1990Reply to a communication from the examining division
18.06.1990Despatch of a communication from the examining division (Time limit: M04)
02.10.1990Reply to a communication from the examining division
27.11.1990Despatch of communication of intention to grant (Approval: Yes)
05.03.1991Communication of intention to grant the patent
20.03.1991Fee for grant paid
20.03.1991Fee for publishing/printing paid
Opposition(s)05.06.1992No opposition filed within time limit [1992/35]
Fees paidRenewal fee
14.01.1989Renewal fee patent year 03
11.12.1989Renewal fee patent year 04
08.12.1990Renewal fee patent year 05
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Documents cited:Search[XD]JP51030856  ;
 [X]US3407253  (SHOHEI YOSHIMURA, et al);
 [X]FR2074338  (SEKISUI CHEMICAL CO LTD);
 [Y]GB2151538  (MITSUI TOATSU CHEMICALS)
 [XD]  - WPIL, File Supplier, no. 76-32728x, Derwent Publications, Ltd, London, GB; & JP-A-51 030 856 (SHOWA DENKO K.K.) 17-03-1976, & JP51030856 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.