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Extract from the Register of European Patents

EP About this file: EP4306583

EP4306583 - THERMOPLASTIC RESIN EXPANDED BEAD AND MOLDED ARTICLE OF THERMOPLASTIC RESIN EXPANDED BEADS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  20.02.2026
Database last updated on 24.03.2026
FormerThe patent has been granted
Status updated on  14.03.2025
FormerGrant of patent is intended
Status updated on  29.01.2025
FormerRequest for examination was made
Status updated on  08.01.2025
FormerGrant of patent is intended
Status updated on  21.11.2024
FormerRequest for examination was made
Status updated on  10.05.2024
FormerThe application has been published
Status updated on  15.12.2023
Most recent event   Tooltip20.03.2026Lapse of the patent in a contracting state
New state(s): LU		published on 22.04.2026 [2026/17]
Applicant(s)For all designated states
JSP Corporation
4-2 Marunouchi 3-chome
Chiyoda-ku
Tokyo 100-0005 / JP
[2024/03]
Inventor(s)01 / SAKAMURA, Takumi
Kanuma-shi, 322-0014 / JP
02 / OHTA, Hajime
Kanuma-shi, 322-0014 / JP
 [2024/03]
Representative(s)Kramer Barske Schmidtchen Patentanwälte PartG mbB
European Patent Attorneys
Landsberger Strasse 300
80687 München / DE
[2024/03]
Application number, filing date23184457.210.07.2023
[2024/03]
Priority number, dateJP2022011286514.07.2022         Original published format: JP 2022112865
[2024/03]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP4306583
Date:17.01.2024
Language:EN
[2024/03]
Type: B1 Patent specification 
No.:EP4306583
Date:16.04.2025
Language:EN
[2025/16]
Search report(s)(Supplementary) European search report - dispatched on:EP01.12.2023
ClassificationIPC:C08J9/18, C08J9/232, B29C44/34
[2024/03]
CPC:
C08J9/18 (EP,CN); C08J9/228 (CN,US); B29C44/3461 (EP);
C08J9/232 (EP); C08L23/14 (US); B29C44/3426 (EP);
B29K2023/12 (EP); C08J2201/034 (EP,US); C08J2205/052 (EP);
C08J2323/14 (CN,US); C08J2323/16 (EP); C08J2423/14 (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,   ME,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2024/24]
Former [2024/03]AL,  AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  ME,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  RS,  SE,  SI,  SK,  SM,  TR 
TitleGerman:EXPANDIERTE PERLEN AUS THERMOPLASTISCHEM HARZ UND FORMKÖRPER AUS EXPANDIERTEN PERLEN AUS THERMOPLASTISCHEM HARZ[2024/03]
English:THERMOPLASTIC RESIN EXPANDED BEAD AND MOLDED ARTICLE OF THERMOPLASTIC RESIN EXPANDED BEADS[2024/03]
French:BILLE EXPANSÉE DE RÉSINE THERMOPLASTIQUE ET ARTICLE MOULÉ DE BILLES EXPANSÉES DE RÉSINE THERMOPLASTIQUE[2024/03]
Examination procedure07.05.2024Amendment by applicant (claims and/or description)
07.05.2024Examination requested  [2024/24]
07.05.2024Date on which the examining division has become responsible
22.11.2024Communication of intention to grant the patent
23.12.2024Disapproval of the communication of intention to grant the patent by the applicant or resumption of examination proceedings by the EPO
30.01.2025Communication of intention to grant the patent
06.03.2025Fee for grant paid
06.03.2025Fee for publishing/printing paid
06.03.2025Receipt of the translation of the claim(s)
Opposition(s)19.01.2026No opposition filed within time limit [2026/13]
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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.
Lapses during opposition  TooltipAT16.04.2025
BG16.04.2025
CZ16.04.2025
DK16.04.2025
EE16.04.2025
ES16.04.2025
FI16.04.2025
HR16.04.2025
IT16.04.2025
LV16.04.2025
NL16.04.2025
PL16.04.2025
RO16.04.2025
SK16.04.2025
SM16.04.2025
LU10.07.2025
NO16.07.2025
RS16.07.2025
GR17.07.2025
IS16.08.2025
PT18.08.2025
[2026/17]
Former [2026/16]AT16.04.2025
BG16.04.2025
CZ16.04.2025
DK16.04.2025
EE16.04.2025
ES16.04.2025
FI16.04.2025
HR16.04.2025
IT16.04.2025
LV16.04.2025
NL16.04.2025
PL16.04.2025
RO16.04.2025
SK16.04.2025
SM16.04.2025
NO16.07.2025
RS16.07.2025
GR17.07.2025
IS16.08.2025
PT18.08.2025
Former [2026/11]AT16.04.2025
BG16.04.2025
CZ16.04.2025
DK16.04.2025
EE16.04.2025
ES16.04.2025
FI16.04.2025
HR16.04.2025
IT16.04.2025
LV16.04.2025
NL16.04.2025
PL16.04.2025
SK16.04.2025
SM16.04.2025
NO16.07.2025
RS16.07.2025
GR17.07.2025
IS16.08.2025
PT18.08.2025
Former [2025/49]AT16.04.2025
BG16.04.2025
ES16.04.2025
FI16.04.2025
HR16.04.2025
LV16.04.2025
NL16.04.2025
PL16.04.2025
NO16.07.2025
RS16.07.2025
GR17.07.2025
IS16.08.2025
PT18.08.2025
Former [2025/48]AT16.04.2025
BG16.04.2025
ES16.04.2025
FI16.04.2025
HR16.04.2025
NL16.04.2025
PL16.04.2025
NO16.07.2025
RS16.07.2025
GR17.07.2025
PT18.08.2025
Former [2025/46]ES16.04.2025
FI16.04.2025
NL16.04.2025
PT18.08.2025
Former [2025/43]NL16.04.2025
Documents cited:Search[XI] EP0697274  (JSP CORP et al.)
 [A] US2003011091  (TOKORO HISAO et al.)
by applicantJP2000129028
 JPH07137064
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.