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Extract from the Register of European Patents

EP About this file: EP3553047

EP3553047 - METHOD FOR PURIFYING N-(ALPHA-ALKOXYETHYL)FORMAMIDE, METHOD FOR PRODUCING HIGH-PURITY N-(ALPHA-ALKOXYETHYL)FORMAMIDE, AND DEVICE FOR PURIFYING N-(ALPHA-ALKOXYETHYL)FORMAMIDE [Right-click to bookmark this link]
Former [2019/42]METHOD FOR PURIFYING N-( -ALKOXYETHYL)FORMAMIDE, METHOD FOR PRODUCING HIGH-PURITY N-( -ALKOXYETHYL)FORMAMIDE, AND DEVICE FOR PURIFYING N-( -ALKOXYETHYL)FORMAMIDE
[2021/28]
StatusNo opposition filed within time limit
Status updated on  02.09.2022
Database last updated on 19.03.2026
FormerThe patent has been granted
Status updated on  24.09.2021
FormerGrant of patent is intended
Status updated on  24.06.2021
FormerExamination is in progress
Status updated on  16.10.2020
FormerRequest for examination was made
Status updated on  13.09.2019
FormerThe international publication has been made
Status updated on  16.06.2018
Most recent event   Tooltip19.12.2025Lapse of the patent in a contracting state
New state(s): TR		published on 21.01.2026  [2026/04]
Applicant(s)For all designated states
Mitsubishi Chemical Corporation
1-1, Marunouchi 1-chome
Chiyoda-ku
Tokyo 100-8251 / JP
[2019/42]
Inventor(s)01 / TERAMOTO, Kouji
c/o Mitsubishi Chemical Corporation
1-1 Marunouchi 1-chome
Chiyoda-ku
Tokyo 100-8251 / JP
02 / NISHIMURA, Hitoshi
c/o Mitsubishi Chemical Corporation
1-1 Marunouchi 1-chome
Chiyoda-ku
Tokyo 100-8251 / JP
 [2019/42]
Representative(s)Hoffmann Eitle
Patent- und Rechtsanwälte PartmbB
Arabellastraße 30
81925 München / DE
[2019/42]
Application number, filing date17879134.908.12.2017
[2019/42]
WO2017JP44166
Priority number, dateJP2016023948809.12.2016         Original published format: JP 2016239488
[2019/42]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2018105724
Date:14.06.2018
Language:JA
[2018/24]
Type: A1 Application with search report 
No.:EP3553047
Date:16.10.2019
Language:EN
[2019/42]
Type: B1 Patent specification 
No.:EP3553047
Date:27.10.2021
Language:EN
[2021/43]
Search report(s)International search report - published on:JP14.06.2018
(Supplementary) European search report - dispatched on:EP17.10.2019
ClassificationIPC:C07C231/24, C07C233/18, B01D3/14, B01D3/26
[2019/47]
CPC:
B01D3/009 (EP,US); C07C231/24 (US); B01D3/143 (EP,US);
B01D3/26 (US); C07C233/18 (US)
C-Set:
C07C231/24, C07C233/18 (EP,US)
Former IPC [2019/42]C07C231/24, B01D3/14, B01D3/26, C07C233/18
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 [2019/42]
Extension statesBANot yet paid
MENot yet paid
Validation statesMANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERFAHREN ZUR REINIGUNG VON N-(ALPHA-ALKOXYETHYL)FORMAMID, VERFAHREN ZUR HERSTELLUNG VON HOCHREINEM N-(ALPHA-ALKOXYETHYL)FORMAMID UND VORRICHTUNG ZUR REINIGUNG VON N-(ALPHA-ALKOXYETHYL)FORMAMID[2021/28]
English:METHOD FOR PURIFYING N-(ALPHA-ALKOXYETHYL)FORMAMIDE, METHOD FOR PRODUCING HIGH-PURITY N-(ALPHA-ALKOXYETHYL)FORMAMIDE, AND DEVICE FOR PURIFYING N-(ALPHA-ALKOXYETHYL)FORMAMIDE[2021/28]
French:MÉTHODE DE PURIFICATION DE N-(ALPHA-ALKOXYETHYL)FORMAMIDE, MÉTHODE DE PRODUCTION DE N-(ALPHA-ALKOXYETHYL)FORMAMIDE DE HAUTE PURETÉ, ET DISPOSITIF DE PURIFICATION DE N-(ALPHA-ALKOXYETHYL)FORMAMIDE[2021/28]
Former [2019/42]VERFAHREN ZUR REINIGUNG VON N-(-ALKOXYETHYL)FORMAMID, VERFAHREN ZUR HERSTELLUNG VON HOCHREINEM N-(-ALKOXYETHYL)FORMAMID UND VORRICHTUNG ZUR REINIGUNG VON N-(-ALKOXYETHYL)FORMAMID
Former [2019/42]METHOD FOR PURIFYING N-( -ALKOXYETHYL)FORMAMIDE, METHOD FOR PRODUCING HIGH-PURITY N-( -ALKOXYETHYL)FORMAMIDE, AND DEVICE FOR PURIFYING N-( -ALKOXYETHYL)FORMAMIDE
Former [2019/42]MÉTHODE DE PURIFICATION DE N-( -ALKOXYETHYL)FORMAMIDE, MÉTHODE DE PRODUCTION DE N-( -ALKOXYETHYL)FORMAMIDE DE HAUTE PURETÉ, ET DISPOSITIF DE PURIFICATION DE N-( -ALKOXYETHYL)FORMAMIDE
Entry into regional phase06.05.2019Translation filed 
06.05.2019National basic fee paid 
06.05.2019Search fee paid 
06.05.2019Designation fee(s) paid 
06.05.2019Examination fee paid 
Examination procedure06.05.2019Examination requested  [2019/42]
29.05.2020Amendment by applicant (claims and/or description)
20.10.2020Despatch of a communication from the examining division (Time limit: M04)
11.02.2021Reply to a communication from the examining division
25.06.2021Communication of intention to grant the patent
16.09.2021Fee for grant paid
16.09.2021Fee for publishing/printing paid
16.09.2021Receipt of the translation of the claim(s)
Opposition(s)28.07.2022No opposition filed within time limit [2022/40]
Fees paidRenewal fee
09.12.2019Renewal fee patent year 03
10.12.2020Renewal fee patent year 04
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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  TooltipHU08.12.2017
AL27.10.2021
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Documents cited:Search[Y] US5574185  (SATO SHIN-ICHI et al.) [Y] 1-11 * column 2, line 61 - column 3, line 9 *
 [Y] US6488817  (SWAIN CHARLES FRANCIS et al.) [Y] 1-11 * column 2, lines 51-53 *
 [Y] EP0490349  (KAWASAKI STEEL CO et al.) [Y] 1-11 * example 8 * * figure 4 *
 [A] US5365011  (RAMACHANDRAN RAMAKRISHNAN et al.) [A] 1-11 * column 2, line 35 *
International search[Y] JPH06184071  (MITSUBISHI CHEM IND et al.)
 [Y] JPH06279376  (MITSUBISHI CHEM IND et al.)
 [Y] JPH06287232  (MITSUBISHI CHEM IND et al.) [y] 1-11
 [Y] JPH06179644  (MITSUBISHI CHEM IND et al.) [y] 1-11
 [Y] JPH06122661  (MITSUBISHI CHEM IND et al.) [y] 1-11
 [Y] JPS63190862  (MITSUBISHI CHEM IND et al.) [y] 1-11
 [A] JPS62289549  (SHOWA DENKO KK et al.) [a] 1-11
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 [Y] JPS5675464  (HOECHST AG)
 [Y] JPH0679123  (BOC GROUP INC et al.) [y] 1-11
 [Y] JPS63178892  (NIPPON KOKAN KK et al.) [y] 1-11
 [Y] JP2002509899   [y] 1-11
 [Y] JPH0539231  (KAWASAKI STEEL CO et al.) [y] 1-11
 [Y] JP2010138169  (ASAHI KASEI CHEMICALS CORP et al.) [y] 1-11
 [Y] JPH07304703  (INST FRANCAIS DU PETROLE et al.) [y] 1-11
 [Y] JPS63227538  (UBE INDUSTRIES et al.) [y] 1-11
 [Y] JPS572239  (JAPAN SYNTHETIC RUBBER CO LTD) [y] 1-11
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 [Y]   UN C,L.: "Research on synthesis of N-alpha-methoxyethyl formamide", HWAHAK KWA HWAHAK KONGHAK = [KOREAN CHEMICAL ENGINEERING RESEARCH], vol. 100, no. 3, 2011, pages 43 - 44, XP009514898, ISSN: 0439-982X
Examination  JEFFREY P. KNAPP ET AL: "A new pressure-swing-distillation process for separating homogeneous azeotropic mixtures", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 31, no. 1, 1 January 1992 (1992-01-01), pages 346 - 357, XP055718194, ISSN: 0888-5885, DOI: 10.1021/ie00001a047

DOI:   http://dx.doi.org/10.1021/ie00001a047
by applicantJP2016239488
 JPH06279376
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.