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Extract from the Register of European Patents

EP About this file: EP0812337

EP0812337 - BYPRODUCT STREAM PURIFICATION IN THE PREPARATION OF 1,3-PROPANEDIOL-BASED POLYESTERS [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  08.02.2008
Database last updated on 20.12.2024
Most recent event   Tooltip01.11.2013Change - lapse in a contracting state
State(s) deleted from list of lapses: IT		published on 04.12.2013  [2013/49]
Applicant(s)For all designated states
Shell Internationale Research Maatschappij B.V.
Carel van Bylandtlaan 30
2596 HR Den Haag / NL
[N/P]
Former [1997/51]For all designated states
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
Carel van Bylandtlaan 30
2596 HR Den Haag / NL
Inventor(s)01 / CHOU, Charles, Chi-Su
18314 Forest Town Drive
Houston, TX 77084 / US
02 / KELSEY, Donald, Ross
4706 Lake Village Drive
Fulshear, TX 77441 / US
[1997/51]
Application number, filing date96905815.526.02.1996
[1997/51]
WO1996EP00809
Priority number, dateUS1995039523127.02.1995         Original published format: US 395231
[1997/51]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9626970
Date:06.09.1996
Language:EN
[1996/40]
Type: A1 Application with search report 
No.:EP0812337
Date:17.12.1997
Language:EN
The application published by WIPO in one of the EPO official languages on 06.09.1996 takes the place of the publication of the European patent application.
[1997/51]
Type: B1 Patent specification 
No.:EP0812337
Date:16.12.1998
Language:EN
[1998/51]
Search report(s)International search report - published on:EP06.09.1996
ClassificationIPC:C08G63/78, C08G63/90, C08G63/183
[1997/51]
CPC:
C08G63/78 (EP,KR,US); C08G63/183 (KR); C08G63/90 (KR)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   IT,   LI,   NL,   SE [1997/51]
TitleGerman:NEBENPRODUKT REINIGUNG BEI DER HERSTELLUNG VON POLYESTERN AUF DER BASIS VON 1,3-PROPANDIOL[1997/51]
English:BYPRODUCT STREAM PURIFICATION IN THE PREPARATION OF 1,3-PROPANEDIOL-BASED POLYESTERS[1997/51]
French:PURIFICATION DE FLUX DE SOUS-PRODUITS DANS LA PREPARATION DE POLYESTERS A BASE DE PROPANEDIOL-1,3[1997/51]
Entry into regional phase04.08.1997National basic fee paid 
04.08.1997Designation fee(s) paid 
04.08.1997Examination fee paid 
Examination procedure23.09.1996Request for preliminary examination filed
International Preliminary Examining Authority: EP
04.08.1997Examination requested  [1997/51]
27.01.1998Despatch of communication of intention to grant (Approval: Yes)
19.06.1998Communication of intention to grant the patent
14.09.1998Fee for grant paid
14.09.1998Fee for publishing/printing paid
Opposition(s)Opponent(s)01  14.09.1999  15.10.1999  ADMISSIBLE
E.I. DU PONT DE NEMOURS AND COMPANY
1007 Market Street
Wilmington DE 19898 / US
Opponent's representative
Kuhnen & Wacker Patent- und Rechtsanwaltsbüro PartG mbB
Prinz-Ludwig-Straße 40A
85354 Freising / DE
 [N/P]
Former [2008/30]
Opponent(s)01  14.09.1999  15.10.1999  ADMISSIBLE
E.I. DU PONT DE NEMOURS AND COMPANY
1007 Market Street
Wilmington DE 19898 / US
Opponent's representative
Kuhnen & Wacker
Patent- und Rechtsanwaltsbüro Postfach 19 64
85319 Freising / DE
Former [1999/45]
Opponent(s)01  14.09.1999   
E.I. Du Pont de Nemours & Company, Inc.
1007 Market Street
Wilmington, Delaware 19898 / US
Opponent's representative
R.A. KUHNEN & P.A. WACKER
Patentanwaltsgesellschaft mbH Alois-Steinecker-Strasse 22
85354 Freising / DE
20.10.1999Invitation to proprietor to file observations on the notice of opposition
28.04.2000Reply of patent proprietor to notice(s) of opposition
25.01.2005Date of oral proceedings
02.05.2005Despatch of interlocutory decision in opposition
02.05.2005Despatch of minutes of oral proceedings
29.11.2007Legal effect of revocation of patent [2008/11]
28.12.2007Despatch of communication that the patent will be revoked
Appeal following opposition07.07.2005Appeal received No.  T0881/05
08.09.2005Statement of grounds filed
29.11.2007Result of appeal procedure: revocation of the patent
29.11.2007Date of oral proceedings
06.12.2007Minutes of the oral proceedings despatched
Fees paidRenewal fee
23.02.1998Renewal fee patent year 03
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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  TooltipAT26.02.2003
GB26.02.2003
SE27.02.2003
BE28.02.2003
CH28.02.2003
LI28.02.2003
NL01.09.2003
FR31.10.2003
[2013/49]
Former [2007/34]AT26.02.2003
GB26.02.2003
SE27.02.2003
BE28.02.2003
CH28.02.2003
LI28.02.2003
NL01.09.2003
FR31.10.2003
IT26.02.2005
Former [2004/28]AT26.02.2003
GB26.02.2003
SE27.02.2003
BE28.02.2003
CH28.02.2003
LI28.02.2003
NL01.09.2003
FR31.10.2003
Former [2004/22]AT26.02.2003
GB26.02.2003
SE27.02.2003
CH28.02.2003
LI28.02.2003
NL01.09.2003
FR31.10.2003
Former [2004/21]AT26.02.2003
SE27.02.2003
CH28.02.2003
LI28.02.2003
NL01.09.2003
FR31.10.2003
Former [2004/03]AT26.02.2003
SE27.02.2003
CH28.02.2003
LI28.02.2003
NL01.09.2003
Former [2004/02]SE27.02.2003
CH28.02.2003
LI28.02.2003
NL01.09.2003
Former [2004/01]SE27.02.2003
CH28.02.2003
LI28.02.2003
Former [2003/50]SE27.02.2003
Cited inInternational search[A]EP0547553  (HOECHST CELANESE CORP [US]) [A] 1-8* claims 1-32 *
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.