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Extract from the Register of European Patents

EP About this file: EP3838545

EP3838545 - POLYOL MIXTURES AND THEIR USE IN THE PRODUCTION OF FINE CELLULAR POLYURETHANE FOAMS [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  06.05.2022
Database last updated on 31.08.2024
FormerThe application has been published
Status updated on  21.05.2021
Most recent event   Tooltip06.05.2022Application deemed to be withdrawnpublished on 08.06.2022  [2022/23]
Applicant(s)For all designated states
Covestro Deutschland AG
Kaiser-Wilhelm-Allee 60
51373 Leverkusen / DE
For all designated states
Universität Stuttgart
Keplerstrasse 7
70174 Stuttgart / DE
[2021/25]
Inventor(s)01 / HAHN, Christian
51375 Leverkusen / DE
02 / NEFZGER, Hartmut
50259 Pulheim / DE
03 / LORENZ, Klaus
41539 Dormagen / DE
04 / SOTTMANN, Thomas
70597 Stuttgart / DE
05 / TSENG, Shih-Yu
70199 Stuttgart / DE
06 / LÜLSDORF, Stefan
70736 Fellbach / DE
 [2021/25]
Representative(s)Levpat
c/o Covestro AG
Gebäude 4825
51365 Leverkusen / DE
[2021/25]
Application number, filing date19217023.117.12.2019
[2021/25]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP3838545
Date:23.06.2021
Language:DE
[2021/25]
Search report(s)(Supplementary) European search report - dispatched on:EP08.06.2020
ClassificationIPC:B29C44/34, C08G18/40, C08G18/76, C08J9/12
[2021/25]
CPC:
B29C44/10 (EP); B29C44/348 (EP); B29C44/586 (EP);
C08G18/4018 (EP); C08G18/7664 (EP); C08J9/122 (EP);
B29K2075/00 (EP); C08J2203/06 (EP); C08J2203/08 (EP);
C08J2375/04 (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 [2021/25]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:POLYOLMISCHUNGEN UND DEREN VERWENDUNG IN DER HERSTELLUNG FEINZELLIGER POLYURETHANSCHÄUME[2021/25]
English:POLYOL MIXTURES AND THEIR USE IN THE PRODUCTION OF FINE CELLULAR POLYURETHANE FOAMS[2021/25]
French:MÉLANGES DE POLYOL ET LEUR UTILISATION DANS LA FABRICATION DE MOUSSES DE POLYURÉTHANE À PETITS ALVÉOLES[2021/25]
Examination procedure24.12.2021Application deemed to be withdrawn, date of legal effect  [2022/23]
25.01.2022Despatch of communication that the application is deemed to be withdrawn, reason: examination fee not paid in time  [2022/23]
Fees paidRenewal fee
30.11.2021Renewal fee patent year 03
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Documents cited:Search[I]EP3564283  (COVESTRO DEUTSCHLAND AG [DE]) [I] 1-11 * paragraphs [0024] - [0027] - [0033]; table 1; compound Polyol 1 *;
 [I]US9403958  (LINDNER STEFAN [DE], et al) [I] 1-11 * column 7, line 54 - column 8, line 43; examples 3-6; claims 1-3 * * column 9, lines 5-19 *
by applicantDE10260815
 DE102009053218
 WO2010043624
 EP1923417
    - M. SCHWANL. G. A. KRAMERT. SOTTMANNR. STREY, Phys. Chem. Chem. Phys, (20100000), vol. 12, page 6247
    - CHEMICAL ABSTRACTS, Database accession no. 67674-67-3
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.