Extract from the Register of European Patents

EP About this file: EP3898760

EP3898760 - PROCESS FOR PRODUCING A POLYESTER [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  27.10.2023
Database last updated on 11.04.2026
FormerRequest for examination was made
Status updated on  24.09.2021
FormerThe international publication has been made
Status updated on  02.07.2020
Formerunknown
Status updated on  20.12.2019
Most recent event   Tooltip27.10.2023Application deemed to be withdrawnpublished on 29.11.2023  [2023/48]
Applicant(s)For all designated states
Covestro Intellectual Property GmbH & Co. KG
Kaiser-Wilhelm-Allee 60
51373 Leverkusen / DE
[2021/43]
Inventor(s)01 / MACHAT, Martin
Friedrich-Karl-Str. 127
50735 Köln / DE
02 / WOLF, Aurel
Veilchenweg 18
42489 Wülfrath / DE
03 / GÜRTLER, Christoph
Am Botanischen Garten 42
50735 Köln / DE
04 / MEURESCH, Markus
Olpener Strasse 1018
51109 Köln / DE
 [2021/43]
Representative(s)Levpat
c/o Covestro AG
Gebäude 4825
51365 Leverkusen / DE
[2021/43]
Application number, filing date19817743.816.12.2019
[2021/43]
WO2019EP85304
Priority number, dateEP2018021518621.12.2018         Original published format: EP 18215186
[2021/43]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report
No.:WO2020127015
Date:25.06.2020
Language:DE
[2020/26]
Type: A1 Application with search report 
No.:EP3898760
Date:27.10.2021
Language:DE
The application published by WIPO in one of the EPO official languages on 25.06.2020 takes the place of the publication of the European patent application.
[2021/43]
Search report(s)International search report - published on:EP25.06.2020
ClassificationIPC:C08G63/08, C08G63/82, C08G63/87
[2021/43]
CPC:
C08G63/823 (EP,US); C08G63/08 (EP,US); C09D167/04 (US);
C09J167/04 (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 [2021/43]
TitleGerman:VERFAHREN ZUR HERSTELLUNG EINES POLYESTERS[2021/43]
English:PROCESS FOR PRODUCING A POLYESTER[2021/43]
French:PROCÉDÉ DE PRODUCTION D'UN POLYESTER[2021/43]
Entry into regional phase21.07.2021National basic fee paid 
21.07.2021Designation fee(s) paid 
21.07.2021Examination fee paid 
Examination procedure21.07.2021Examination requested  [2021/43]
21.07.2021Date on which the examining division has become responsible
13.01.2022Amendment by applicant (claims and/or description)
01.07.2023Application deemed to be withdrawn, date of legal effect  [2023/48]
27.07.2023Despatch of communication that the application is deemed to be withdrawn, reason: renewal fee not paid in time  [2023/48]
Fees paidRenewal fee
30.11.2021Renewal fee patent year 03
Penalty fee
Additional fee for renewal fee
31.12.202204   M06   Not yet paid
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Cited inInternational search[Y] US5032671  (HARPER STEPHEN D et al.)
 [Y] EP1647567  (SOLVAY et al.)
 [Y] JPS6067446  (TOA GOSEI CHEM IND et al.)
 [Y] JP3235901  
by applicantWO2011000560
 WO2008104723
 GB1201909
 US5032671
 EP1359177
 US7304172
 US2012165549
 US3404109
 US3829505
 US3941849
 US5158922
 US5470813
 EP0700949
 EP0743093
 EP0761708
 WO9740086
 WO9816310
 WO0047649
 JP4145123
 WO0139883
 WO0180994
   COUFFIN ET AL., POLY. CHEM, vol. 5, 2014, pages 161
   M. H. CHISHOLM ET AL., MACROMOLECULES, vol. 35, 2002, pages 6494
   S. D. ALLEN, J. AM. CHEM. SOC., vol. 124, 2002, pages 14284
   CHEMICAL COMMUNICATIONS, vol. 47, 2011, pages 141 - 163
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.