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Extract from the Register of European Patents

EP About this file: EP0419400

EP0419400 - Process for crystallization of polyethylene naphthalate [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  22.12.2000
Database last updated on 29.10.2024
Most recent event   Tooltip20.06.2008Change - opposition data/opponents data or that of the opponents representativepublished on 23.07.2008  [2008/30]
Applicant(s)For all designated states
Shell Internationale Research Maatschappij B.V.
Carel van Bylandtlaan 30
2596 HR Den Haag / NL
[N/P]
Former [1993/16]For all designated states
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
Carel van Bylandtlaan 30
NL-2596 HR Den Haag / NL
Former [1991/13]For all designated states
THE GOODYEAR TIRE & RUBBER COMPANY
1144 East Market Street
Akron, Ohio 44316-0001 / US
Inventor(s)01 / Duh, Ben
393 Tammery Drive
Tallmadge, Ohio 44278 / US
[1991/13]
Representative(s)Hoffmann Eitle
Patent- und Rechtsanwälte PartmbB
Arabellastrasse 30
81925 München / DE
[N/P]
Former [2000/48]HOFFMANN - EITLE
Patent- und Rechtsanwälte Arabellastrasse 4
81925 München / DE
Former [1996/09](deleted)
Former [1991/13]Leitz, Paul
Goodyear Technical Center-Luxembourg
L-7750 Colmar-Berg / LU
Application number, filing date90630150.205.09.1990
[1991/13]
Priority number, dateUS1989040835418.09.1989         Original published format: US 408354
[1991/13]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0419400
Date:27.03.1991
Language:EN
[1991/13]
Type: A3 Search report 
No.:EP0419400
Date:22.04.1992
Language:EN
[1992/17]
Type: B1 Patent specification 
No.:EP0419400
Date:28.02.1996
[1996/09]
Search report(s)(Supplementary) European search report - dispatched on:EP05.03.1992
ClassificationIPC:C08G63/88, C08G63/80
[1991/13]
CPC:
C08G63/88 (EP,US); C08G63/181 (KR); C08G63/78 (KR);
C08G63/80 (EP,US)
Designated contracting statesBE,   DE,   ES,   FR,   GB,   IT,   NL [1991/13]
TitleGerman:Verfahren zur Kristallisation von Polyethylennaphthalat[1991/13]
English:Process for crystallization of polyethylene naphthalate[1991/13]
French:Procédé pour la cristallisation de polynaphtalate d'éthylène[1991/13]
Examination procedure17.09.1990Examination requested  [1991/13]
25.11.1994Despatch of a communication from the examining division (Time limit: M06)
28.03.1995Reply to a communication from the examining division
28.07.1995Despatch of communication of intention to grant (Approval: Yes)
30.08.1995Communication of intention to grant the patent
08.11.1995Fee for grant paid
08.11.1995Fee for publishing/printing paid
Opposition(s)Opponent(s)01  27.11.1996  20.01.1997  ADMISSIBLE
E.I. DU PONT DE NEMOURS AND COMPANY
1007 Market Street
Wilmington DE 19898 / US
Opponent's representative
Jones, Alan John, et al, et al
CARPMAELS & RANSFORD 43 Bloomsbury Square
London, WC1A 2RA / GB
 02  28.11.1996  20.01.1997  ADMISSIBLE
Hoechst Trevira GMBH & Co KG Patente und Lizenzen
Gebäude K 801
65926 Frankfurt am Main / DE
 [N/P]
Former [2008/30]
Opponent(s)01  27.11.1996  20.01.1997  ADMISSIBLE
E.I. DU PONT DE NEMOURS AND COMPANY
1007 Market Street
Wilmington DE 19898 / US
Opponent's representative
Jones, Alan John, et al, et al
CARPMAELS & RANSFORD 43 Bloomsbury Square
London, WC1A 2RA / GB
 02  28.11.1996  20.01.1997  ADMISSIBLE
Hoechst Trevira GMBH & Co KG Patente und Lizenze
Gebäude K 801
65926 Frankfurt am Main / DE
Former [2000/13]
Opponent(s)01  27.11.1996  20.01.1997  ADMISSIBLE
E.I.du Pont de Nemours and Company
Legal Department 1007 Market Street
Wilmington, Delaware 19898, USA / US
Opponent's representative
Jones, Alan John, et al, et al
CARPMAELS & RANSFORD 43 Bloomsbury Square
London, WC1A 2RA / GB
 02  28.11.1996  20.01.1997  ADMISSIBLE
Hoechst Trevira GMBH & Co KG Patente und Lizenze
Gebäude K 801
65926 Frankfurt am Main / DE
Former [1999/23]
Opponent(s)01  27.11.1996  20.01.1997  ADMISSIBLE
Imperial Chemical Industries PLC
Imperial Chemical House, Millbank
London SW1P 3JF / GB
Opponent's representative
Jackson, John Derek
Du Pont (UK) Limited c/o Fiona Gribbin PO Box 2003
Wilton, Middlesbrough TS90 8JF / GB
 02  28.11.1996  20.01.1997  ADMISSIBLE
Hoechst Trevira GMBH & Co KG Patente und Lizenze
Gebäude K 801
65926 Frankfurt am Main / DE
Former [1998/09]
Opponent(s)01  27.11.1996  20.01.1997  ADMISSIBLE
Imperial Chemical Industries PLC
Imperial Chemical House, Millbank
London SW1P 3JF / GB
Opponent's representative
Jackson, John Derek
Group Intellectual Property PO Box 90 Wilton
Middlesbrough, Cleveland / GB
 02  28.11.1996  20.01.1997  ADMISSIBLE
Hoechst Trevira GMBH & Co KG Patente und Lizenze
Gebäude K 801
65926 Frankfurt am Main / DE
Former [1997/04]
Opponent(s)01  27.11.1996  20.01.1997  ADMISSIBLE
Imperial Chemical Industries PLC
Imperial Chemical House, Millbank
London SW1P 3JF / GB
Opponent's representative
Millross, Christopher Robert (GB)
Intellectual Property Department ICI Materials P.O. Box 90 Wilton
GB-Middlesbrough, Cleveland TS90 8JE / GB
 02  28.11.1996  20.01.1997  ADMISSIBLE
Hoechst Trevira GMBH & Co KG Patente und Lizenze
Gebäude K 801
65926 Frankfurt am Main / DE
23.01.1997Invitation to proprietor to file observations on the notice of opposition
23.05.1997Reply of patent proprietor to notice(s) of opposition
21.01.1998Date of oral proceedings
17.03.1998Despatch of minutes of oral proceedings
17.03.1998Despatch of communication that the patent will be revoked
07.11.2000Legal effect of revocation of patent [2001/06]
Appeal following opposition13.05.1998Appeal received No.  T0552/98
20.05.1998Statement of grounds filed
07.11.2000Result of appeal procedure: appeal of the proprietor was rejected
07.11.2000Date of oral proceedings
13.11.2000Minutes of the oral proceedings despatched
Fees paidRenewal fee
10.08.1992Renewal fee patent year 03
29.09.1993Renewal fee patent year 04
28.09.1994Renewal fee patent year 05
27.09.1995Renewal fee patent year 06
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Documents cited:Search[Y]JP48043192  ;
 [Y]US3746688  (BERKAU E);
 [A]EP0269583  (COBARR SPA [IT]);
 [A]EP0091566  (FISCHER KARL IND GMBH [DE]);
 [A]US3634359  (BREITSCHAFT SIEGFRIED, et al);
 [A]US3728309  (MAXION E);
 [A]US4008206  (CHIPMAN GARY R, et al)
 [Y]  - CHEMICAL ABSTRACTS, vol. 81, no. 24, 16 December 1974, Columbus, Ohio, US; abstract no. 153503P, SHIMA, TAKEA ET AL: 'Naphthalate polyester with high polymerization degree' & JP-A-48043192 (TEIJIN), & JP48043192 A 19741216
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.