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Extract from the Register of European Patents

EP About this file: EP0570366

EP0570366 - USE OF FLUORINATED AROMATIC POLYAMIDES AS THE ORIENTATION LAYER FOR LIQUID CRYSTAL SWITCHING AND DISPLAY DEVICES [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  08.07.1995
Database last updated on 29.06.2024
Most recent event   Tooltip07.12.2007Lapse of the patent in a contracting state
Updated state(s): FR		published on 09.01.2008  [2008/02]
Applicant(s)For all designated states
HOECHST AKTIENGESELLSCHAFT
65926 Frankfurt am Main / DE
[N/P]
Former [1993/47]For all designated states
HOECHST AKTIENGESELLSCHAFT
D-65926 Frankfurt am Main / DE
Inventor(s)01 / DÜBAL, Hans-Rolf
Heuhohlweg 6
D-6240 Königstein / DE
02 / MURAKAMI, Mikio New Town Bldg. 202
8-1, Minami 2-chome
Kakegawa-shi Skizuoka-ken / JP
03 / HERRMANN-SCHÖNHERR, Otto
Grafenstrasse 15
D-6140 Bensheim / DE
04 / SCHNELLER, Arnold
Asternweg 41
D-6500 Mainz / DE
[1993/47]
Application number, filing date90917091.212.11.1990
[1993/47]
WO1990EP01893
Priority number, dateDE1989393820917.11.1989         Original published format: DE 3938209
[1993/47]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report
No.:WO9108509
Date:13.06.1991
Language:DE
[1991/13]
Type: A1 Application with search report 
No.:EP0570366
Date:24.11.1993
Language:DE
The application published by WIPO in one of the EPO official languages on 13.06.1991 takes the place of the publication of the European patent application.
[1993/47]
Type: B1 Patent specification 
No.:EP0570366
Date:07.09.1994
Language:DE
[1994/36]
Search report(s)International search report - published on:EP13.06.1991
ClassificationIPC:G02F1/1337, C08G69/32
[1993/47]
CPC:
C08G69/32 (EP,US); G02F1/1337 (KR); G02F1/133711 (EP,US);
C09K2323/025 (EP,US); Y10T428/31725 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   IT,   LI,   NL,   SE [1993/47]
TitleGerman:VERWENDUNG FLUORIERTER AROMATISCHER POLYAMIDE ALS ORIENTIERUNGSSCHICHT FÜR FLÜSSIGKRISTALL-SCHALT- UND -ANZEIGEVORRICHTUNGEN[1993/47]
English:USE OF FLUORINATED AROMATIC POLYAMIDES AS THE ORIENTATION LAYER FOR LIQUID CRYSTAL SWITCHING AND DISPLAY DEVICES[1993/47]
French:EMPLOI DE POLYAMIDES AROMATIQUES FLUORES COMME COUCHE D'ORIENTATION POUR DISPOSITIFS DE COMMUTATION ET D'AFFICHAGE A CRISTAUX LIQUIDES[1993/47]
Entry into regional phase11.04.1992National basic fee paid 
11.04.1992Designation fee(s) paid 
11.04.1992Examination fee paid 
Examination procedure29.05.1991Request for preliminary examination filed
International Preliminary Examining Authority: GB
11.04.1992Examination requested  [1993/47]
14.01.1994Despatch of communication of intention to grant (Approval: Yes)
11.03.1994Communication of intention to grant the patent
25.04.1994Fee for grant paid
25.04.1994Fee for publishing/printing paid
Opposition(s)08.06.1995No opposition filed within time limit [1995/35]
Fees paidRenewal fee
16.10.1992Renewal fee patent year 03
18.10.1993Renewal fee patent year 04
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
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  TooltipBE07.09.1994
DK07.09.1994
ES07.09.1994
FR07.09.1994
IT07.09.1994
NL07.09.1994
AT12.11.1994
CH30.11.1994
LI30.11.1994
SE07.12.1994
[2004/35]
Former [2002/25]BE07.09.1994
DK07.09.1994
ES07.09.1994
IT07.09.1994
NL07.09.1994
AT12.11.1994
CH30.11.1994
LI30.11.1994
SE07.12.1994
FR03.02.1995
Former [1999/42]BE07.09.1994
DK07.09.1994
IT07.09.1994
NL07.09.1994
AT12.11.1994
CH30.11.1994
LI30.11.1994
SE07.12.1994
FR03.02.1995
Former [1998/15]BE07.09.1994
DK07.09.1994
NL07.09.1994
AT12.11.1994
CH30.11.1994
LI30.11.1994
SE07.12.1994
FR03.02.1995
Former [1996/14]BE07.09.1994
NL07.09.1994
AT12.11.1994
CH30.11.1994
LI30.11.1994
SE07.12.1994
FR03.02.1995
Former [1995/36]BE07.09.1994
NL07.09.1994
CH30.11.1994
LI30.11.1994
SE07.12.1994
FR03.02.1995
Former [1995/34]BE07.09.1994
NL07.09.1994
SE07.12.1994
FR03.02.1995
Former [1995/29]BE07.09.1994
NL07.09.1994
SE07.12.1994
Former [1995/27]BE07.09.1994
NL07.09.1994
Former [1995/16]NL07.09.1994
Cited inInternational search[A]JP57026827  ;
 [A]JP58037261  ;
 [A]JP01073321
 [A]  - PATENT ABSTRACTS OF JAPAN, Vol. 6, No. 92, (P-119)[970], 29 May 1982; & JP,A,57 026 827, (UNITIKA K.K.), 13 February 1982., & JP57026827 A 19820213
 [A]  - PATENT ABSTRACTS OF JAPAN, Vol. 7, No. 117, (P-198)[1262], 21 May 1983; & JP,A,58 037 261, (HITACHI SEISAKUSHO K.K.), 4 March 1983., & JP58037261 A 19830304
 [A]  - PATENT ABSTRACTS OF JAPAN, Vol. 13, No. 291, (P-893), 6 July 1989; & JP,A,01 073 321, (MATSUSHITA), 17 March 1989., & JP01073321 A 19890317
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.