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Extract from the Register of European Patents

EP About this file: EP4011861

EP4011861 - METHOD FOR THE PRODUCTION OF DIARYL CARBONATES WITH LOW PHENOL CONTENT IN WASTE WATER [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  05.05.2023
Database last updated on 11.09.2024
FormerThe application has been published
Status updated on  13.05.2022
Most recent event   Tooltip05.05.2023Application deemed to be withdrawnpublished on 07.06.2023  [2023/23]
Applicant(s)For all designated states
Covestro Deutschland AG
Kaiser-Wilhelm-Allee 60
51373 Leverkusen / DE
[2022/24]
Inventor(s)01 / GARSKA, Bernd
2040 Antwerpen / BE
02 / HEIJL, Jan
2040 Antwerpen / BE
03 / SLUYTS, Erik
2930 Brasschaat / BE
04 / YAO, Xiaoxin
201199 Shanghai / CN
 [2022/24]
Representative(s)Levpat
c/o Covestro AG
Gebäude 4825
51365 Leverkusen / DE
[2022/24]
Application number, filing date20213498.711.12.2020
[2022/24]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP4011861
Date:15.06.2022
Language:DE
[2022/24]
Search report(s)(Supplementary) European search report - dispatched on:EP14.06.2021
ClassificationIPC:C07C68/02, C07C69/96, C08G64/30
[2022/24]
CPC:
C07C68/02 (EP); C08G64/307 (EP)
C-Set:
C07C68/02, C07C69/96 (EP)
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 [2022/24]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERFAHREN ZUR HERSTELLUNG VON DIARYLCARBONATEN MIT GERINGEM PHENOLGEHALT IM ABWASSER[2022/24]
English:METHOD FOR THE PRODUCTION OF DIARYL CARBONATES WITH LOW PHENOL CONTENT IN WASTE WATER[2022/24]
French:PROCÉDÉ DE FABRICATION DE DIARYLCARBONATES À FAIBLE TENEUR EN PHÉNOL DANS LES EAUX USÉES[2022/24]
Examination procedure16.12.2022Application deemed to be withdrawn, date of legal effect  [2023/23]
23.01.2023Despatch of communication that the application is deemed to be withdrawn, reason: examination fee not paid in time  [2023/23]
Fees paidPenalty fee
Additional fee for renewal fee
31.12.202203   M06   Not yet paid
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Documents cited:Search[ID]EP1216981  (BAYER AG [DE]) [ID] 1-6 * example -; claim - *;
 [I]EP2272890  (BAYER MATERIALSCIENCE AG [DE]) [I] 1-6 * example -; claim - *;
 [A]  - Manfred Weber ET AL, "Phenol", Ullmann's Encyclopedia of Industrial Chemistry, Weinheim, Wiley-VCH, (20200323), pages 1 - 20, doi:10.1002/14356007.a19_299.pub3, ISBN 978-3-527-30673-2, XP055694463 [A] 1-6 * the whole document *

DOI:   http://dx.doi.org/10.1002/14356007.a19_299.pub3
by applicantUS5340905P
 US4016190
 EP0784048
 EP1216981
 EP1216982
 EP1219589
 WO2009071211
    - "Chemistry and Physics of Polycarbonates", H. SCHNELL, Polymer Reviews, John Wiley and Sons, Inc., (19640000), vol. 9
    - Encyclopedia of Polymer Science, (19690000), vol. 10
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.