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Extract from the Register of European Patents

EP About this file: EP4273308

EP4273308 - CELLULOSE FIBER MANUFACTURING METHOD [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  06.10.2023
Database last updated on 26.07.2024
FormerThe international publication has been made
Status updated on  09.07.2022
Most recent event   Tooltip08.03.2024Change: Validation statespublished on 10.04.2024  [2024/15]
08.03.2024Change - extension statespublished on 10.04.2024  [2024/15]
Applicant(s)For all designated states
Asahi Kasei Kabushiki Kaisha
1-1-2 Yurakucho
Chiyoda-ku
Tokyo 1000006 / JP
[2023/45]
Inventor(s)01 / JONO, Keisuke
Tokyo 100-0006 / JP
02 / OGAWA, Yuki
Tokyo 100-0006 / JP
 [2023/45]
Representative(s)dompatent von Kreisler Selting Werner - Partnerschaft von Patent- und Rechtsanwälten mbB
Deichmannhaus am Dom
Bahnhofsvorplatz 1
50667 Köln / DE
[2023/45]
Application number, filing date21915135.420.12.2021
[2023/45]
WO2021JP47094
Priority number, dateJP2021000004304.01.2021         Original published format: JP 2021000043
[2023/45]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022145275
Date:07.07.2022
Language:JA
[2022/27]
Type: A1 Application with search report 
No.:EP4273308
Date:08.11.2023
Language:EN
[2023/45]
Search report(s)International search report - published on:JP07.07.2022
ClassificationIPC:D01F2/02
[2023/45]
CPC:
D01F2/02 (EP,KR); D01D5/06 (EP,US); C08B1/003 (US);
C08L1/02 (US); D01D1/02 (EP); C08L2201/54 (US);
D10B2201/00 (US) (-)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2023/45]
TitleGerman:VERFAHREN ZUR HERSTELLUNG VON CELLULOSEFASERN[2023/45]
English:CELLULOSE FIBER MANUFACTURING METHOD[2023/45]
French:PROCÉDÉ DE FABRICATION DE FIBRE DE CELLULOSE[2023/45]
Entry into regional phase23.06.2023Translation filed 
23.06.2023National basic fee paid 
23.06.2023Search fee paid 
23.06.2023Designation fee(s) paid 
23.06.2023Examination fee paid 
Examination procedure23.06.2023Examination requested  [2023/45]
Fees paidRenewal fee
22.12.2023Renewal fee patent year 03
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Cited inInternational search[Y]JPS54151613  (SNIA VISCOSA) [Y] 1-9 * claims, page 3, lower right column, line 20 to page 4, upper left column, line 11 *;
 [Y]JPS60144332  (TACHIKAWA KENKYUSHO, et al) [Y] 1-9 * claims *;
 [Y]WO2012128315  (KRI INC [JP], et al) [Y] 1-9 * claims, examples 1, 19, fig. 4 *;
 [A]JP2013538246  (INNOVIA FILMS LTD.) [A] 1-9* claims *
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.