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Extract from the Register of European Patents

EP About this file: EP0778867

EP0778867 - LIQUID CRYSTALLINE POLYMER COMPOSITION [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.07.2000
Database last updated on 13.07.2024
Most recent event   Tooltip11.01.2003Lapse of the patent in a contracting state
New state(s): NL
published on 26.02.2003  [2003/09]
Applicant(s)For all designated states
E. I. du Pont de Nemours and Company
1007 Market Street
Wilmington, DE 19898 / US
[N/P]
Former [1997/25]For all designated states
E.I. DU PONT DE NEMOURS AND COMPANY
1007 Market Street
Wilmington Delaware 19898 / US
Inventor(s)01 / WAGGONER, Marion, Glen
36 Sageway Road
Hockessin, DE 19707-9803 / US
[1997/25]
Representative(s)Jones, Alan John
CARPMAELS & RANSFORD 43 Bloomsbury Square
London, WC1A 2RA / GB
[N/P]
Former [1997/25]Jones, Alan John
CARPMAELS & RANSFORD 43 Bloomsbury Square
London, WC1A 2RA / GB
Application number, filing date95927213.921.07.1995
[1997/25]
WO1995US08969
Priority number, dateUS1994029899231.08.1994         Original published format: US 298992
[1997/25]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9606888
Date:07.03.1996
Language:EN
[1996/11]
Type: A1 Application with search report 
No.:EP0778867
Date:18.06.1997
Language:EN
The application published by WIPO in one of the EPO official languages on 07.03.1996 takes the place of the publication of the European patent application.
[1997/25]
Type: B1 Patent specification 
No.:EP0778867
Date:15.09.1999
Language:EN
[1999/37]
Search report(s)International search report - published on:EP07.03.1996
ClassificationIPC:C08L67/00, C08L67/04, C08L77/12, C08L79/08
[1997/25]
CPC:
C08L67/00 (EP); C08L67/04 (EP); C08L77/12 (EP);
C08L79/08 (EP); C08L23/06 (EP)
C-Set:
C08L67/00, C08L2666/06 (EP);
C08L67/04, C08L2666/06 (EP);
C08L77/12, C08L23/00 (EP);
C08L79/08, C08L23/00 (EP)
Designated contracting statesDE,   FR,   GB,   IT,   NL,   SE [1997/25]
TitleGerman:FLÜSSIGKRISTALLINE HARZZUSAMMENSETZUNG[1997/25]
English:LIQUID CRYSTALLINE POLYMER COMPOSITION[1997/25]
French:COMPOSITION A BASE DE POLYMERE CRISTALLIN LIQUIDE[1997/25]
Entry into regional phase05.02.1997National basic fee paid 
05.02.1997Designation fee(s) paid 
05.02.1997Examination fee paid 
Examination procedure15.02.1996Request for preliminary examination filed
International Preliminary Examining Authority: EP
05.02.1997Examination requested  [1997/25]
01.08.1997Despatch of a communication from the examining division (Time limit: M04)
02.12.1997Reply to a communication from the examining division
09.10.1998Despatch of communication of intention to grant (Approval: Yes)
17.02.1999Communication of intention to grant the patent
10.05.1999Fee for grant paid
10.05.1999Fee for publishing/printing paid
Opposition(s)16.06.2000No opposition filed within time limit [2000/35]
Fees paidRenewal fee
05.02.1997Renewal fee patent year 03
08.07.1998Renewal fee patent year 04
13.07.1999Renewal fee patent year 05
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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  TooltipNL15.09.1999
SE15.09.1999
[2003/09]
Former [2002/23]SE15.09.1999
Cited inInternational search[X]EP0462844  (TORAY INDUSTRIES, INC) [X] 1,2,5-16 * page 6, line 40 - line 46; claims 1-3,13-16 *;
 [X]US3647920  (R. R. DI LEONE) [X] 1-4,13-15 * column 2, line 29 - line 53; claims 1-10 *;
 [X]JPH01292057  ;
 [A]EP0111179  (GENERAL ELECTRIC COMPANY) [A] 1-16 * claims 1-16,20-25 *
 [X]  - DATABASE WPI, 1, Derwent World Patents Index, vol. 90, no. 02, Database accession no. 90-011669, & JPH01292057 A 19891124 (UENO PHARMACEUTICAL) [X] 1,2,5-16 * abstract *
 [A]  - IVANOV, V. E. ET AL, "Structurization of lubricants by liquid crystalline compounds", CHEMICAL ABSTRACTS, (19930906), vol. 119, no. 10, Database accession no. 99421 [A] 1-16 * abstract *
    [ ] - KHIM. TEHKNOL. TOPL. MASEL, vol. 2, pages 17 - 18
ExaminationJPH01292057
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.