Extract from the Register of European Patents

EP About this file: EP0842758

EP0842758 - Porous film of high molecular weight polyolefin and process for producing same [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  27.12.2002
Database last updated on 30.03.2026
Most recent event   Tooltip13.06.2008Change - representativepublished on 16.07.2008  [2008/29]
Applicant(s)For all designated states
MITSUI CHEMICALS, INC.
2-5, Kasumigaseki 3-chome, Chiyoda-ku
Tokyo 100 / JP
[N/P]
Former [1998/21]For all designated states
Mitsui Chemicals, Inc.
2-5, Kasumigaseki 3-chome, Chiyoda-ku
Tokyo 100 / JP
Inventor(s)01 / Hashimoto, Akinao
c/o Mitsui Chemicals, Inc., 1-2, Waki 6-chome
Waki-cho, Kuga-gun, Yamaguchi / JP
02 / Yagi, Kazuo
c/o Mitsui Chemicals, Inc., 1-2, Waki 6-chome
Waki-cho, Kuga-gun, Yamaguchi / JP
03 / Mantoku, Hitoshi
c/o Mitsui Chemicals, Inc., 1-2, Waki 6-chome
Waki-cho, Kuga-gun, Yamaguchi / JP
[1998/21]
Representative(s)Cresswell, Thomas Anthony
J.A. Kemp & Co.
14 South Square
Gray's Inn
London
WC1R 5JJ / GB
[N/P]
Former [2008/29]Cresswell, Thomas Anthony
J.A. KEMP & CO. 14 South Square Gray's Inn London
WC1R 5JJ / GB
Former [1998/21]Cresswell, Thomas Anthony
J.A. KEMP & CO. 14 South Square Gray's Inn
London WC1R 5LX / GB
Application number, filing date97309325.519.11.1997
[1998/21]
Priority number, dateJP1996032212819.11.1996         Original published format: JP 32212896
JP1997001958220.01.1997         Original published format: JP 1958297
[1998/21]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0842758
Date:20.05.1998
Language:EN
[1998/21]
Type: A3 Search report 
No.:EP0842758
Date:19.08.1998
[1998/34]
Type: B1 Patent specification 
No.:EP0842758
Date:13.02.2002
Language:EN
[2002/07]
Search report(s)(Supplementary) European search report - dispatched on:EP03.07.1998
ClassificationIPC:B29D7/01, B29C55/00, // B29K23:00, B29K105:04
[1998/21]
CPC:
C08J5/18 (EP,US); B29D7/01 (KR); B29C48/33 (EP,US);
B29C55/005 (EP,US); B29C55/28 (KR); B29C71/02 (EP,US);
H01M50/417 (EP,KR,US); H01M50/489 (EP,KR,US); H01M50/491 (EP,KR,US);
H01M50/494 (EP,KR,US); B29C48/10 (EP,US); B29K2023/00 (EP,US);
B29K2105/04 (EP,US); C08J2323/02 (EP,US); C08J2323/04 (EP,US);
Y02E60/10 (EP); Y10S521/918 (EP,US); Y10T428/249978 (EP,US) (-)
Designated contracting statesDE,   FR,   GB,   IT,   NL [1999/18]
Former [1998/21]AT,  BE,  CH,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Poröse Folie aus einem Polyolefin von hohem molekularen Gewicht und Verfahren zu seiner Herstellung[1998/21]
English:Porous film of high molecular weight polyolefin and process for producing same[1998/21]
French:Film poreux en polyoléfine de poids moléculaire élevé et procédé pour sa fabrication[1998/21]
Examination procedure08.02.1999Examination requested  [1999/14]
30.10.2000Despatch of communication of intention to grant (Approval: No)
15.02.2001Despatch of communication of intention to grant (Approval: later approval)
08.03.2001Communication of intention to grant the patent
30.07.2001Despatch of communication that the application is deemed to be withdrawn, reason: fee for grant / fee for printing not paid in time
19.09.2001Fee for grant paid
19.09.2001Fee for publishing/printing paid
Opposition(s)14.11.2002No opposition filed within time limit [2003/06]
Request for further processing for:19.09.2001Request for further processing filed
19.09.2001Full payment received (date of receipt of payment)
Request granted
05.10.2001Decision despatched
Fees paidRenewal fee
12.11.1999Renewal fee patent year 03
13.11.2000Renewal fee patent year 04
14.11.2001Renewal fee patent year 05
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court
See the Register of the Unified Patent Court for opt-out data
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[A]   CHEMICAL ABSTRACTS, vol. 100, no. 26, 25 June 1984, Columbus, Ohio, US; abstract no. 211254, XP002068610 [A] 13,14 * 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.