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Extract from the Register of European Patents

EP About this file: EP0110299

EP0110299 - Smectic liquid crystal compounds and liquid crystal compositions [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  23.04.1993
Database last updated on 15.06.2024
Most recent event   Tooltip23.04.1993Patent maintained (B2 publication)published on 09.06.1993 [1993/23]
Applicant(s)For all designated states
Hitachi, Ltd.
6, Kanda Surugadai 4-chome
Chiyoda-ku
Tokyo / JP
For all designated states
Chisso Corporation
6-32, Nakanoshima 3-chome Kita-ku Osaka-shi
Osaka 530-0055 / JP
[N/P]
Former [1984/24]For all designated states
HITACHI, LTD.
6, Kanda Surugadai 4-chome
Chiyoda-ku, Tokyo 100 / JP
For all designated states
Chisso Corporation
6-32, Nakanoshima 3-chome Kita-ku
Osaka-shi Osaka-fu / JP
Inventor(s)01 / Isogai, Masato
3-17-2-406, Moriyama-cho
Hitachi-shi Ibaraki-ken / JP
02 / Hattori, Shintarou
Yuhou-ryo, 6-20-3, Ayukawa-cho
Hitachi-shi Ibaraki-ken / JP
03 / Iwasaki, Kishiro
1288, Kamesaku-cho
Hitachiouta-shi Ibaraki-ken / JP
04 / Kitamura, Teruo
3600-234, Nakane
Katsuta-shi Ibaraki-ken / JP
05 / Muko, Akio
498-21, Kasahara-cho
Mito-shi Ibaraki-ken / JP
06 / Inukai, Takashi
3-4-46, Mori Isogo-ku
Yokohama-shi Kanagawa-ken / JP
07 / Furukawa, Kenji
1-16-7, Kurihama
Yokosuka-shi Kanagawa-ken / JP
08 / Saito, Shinichi
10-29, Hirakata-cho Kanazawa-ku
Yokohama-shi Kanagawa-ken / JP
09 / Terashima, Kanetsugu
10-3, Otsutomo-cho Kanazawa-ku
Yokohama-shi Kanagawa-ken / JP
[1984/24]
Representative(s)Strehl, Peter, et al
Patentanwälte
Strehl Schübel-Hopf & Partner
Maximilianstrasse 54
80538 München / DE
[N/P]
Former [1985/04]Strehl, Peter, Dipl.-Ing., et al
Patentanwälte Strehl Schübel-Hopf Groening u. Partner Postfach 22 14 55
D-80504 München / DE
Former [1984/24]Strehl, Peter, Dipl.-Ing.
Dipl.-Ing. P. Strehl Dr. U. Schübel-Hopf Dr. R. Schulz Patentanwälte Widenmayerstrasse 17 Postfach 22 03 45
D-8000 München 22 / DE
Application number, filing date83111666.022.11.1983
[1984/24]
Priority number, dateJP1982020610626.11.1982         Original published format: JP 20610682
JP1982023456125.12.1982         Original published format: JP 23456182
JP1983013780029.07.1983         Original published format: JP 13780083
[1984/24]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0110299
Date:13.06.1984
Language:EN
[1984/24]
Type: A3 Search report 
No.:EP0110299
Date:12.03.1986
Language:EN
[1986/11]
Type: B1 Patent specification 
No.:EP0110299
Date:29.06.1988
Language:EN
[1988/26]
Type: B2 New European patent specification 
No.:EP0110299
Date:09.06.1993
Language:EN
[1993/23]
Search report(s)(Supplementary) European search report - dispatched on:EP23.01.1986
ClassificationIPC:C09K19/10
[1988/26]
CPC:
C09K19/2021 (EP,US); C09K19/10 (KR); C09K19/126 (EP,US);
C09K19/20 (EP,US); C09K19/22 (EP,US); C09K19/48 (EP,US);
C09K19/603 (EP,US) (-)
Former IPC [1984/24]C09K3/34
Designated contracting statesCH,   DE,   GB,   LI [1984/24]
TitleGerman:Smektische Flüssigkristallverbindungen und Flüssigkristallzusammensetzungen[1984/24]
English:Smectic liquid crystal compounds and liquid crystal compositions[1984/24]
French:Composés cristaux liquides smectiques et compositions de cristaux liquides[1984/24]
Examination procedure20.12.1984Examination requested  [1985/11]
10.08.1987Despatch of communication of intention to grant (Approval: )
20.11.1987Communication of intention to grant the patent
26.02.1988Fee for grant paid
26.02.1988Fee for publishing/printing paid
Opposition(s)Opponent(s)01  21.03.1989  16.06.1989  ADMISSIBLE
The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and
Northern Ireland Whitehall
London SW1A 2HB / GB
Opponent's representative
Beckham, Robert William, et al, et al
D/IPR (DERA) Formalities
Poplar 2
MoD Abbey Wood 19
Bristol BS34 8JH / GB
 [N/P]
Former [1989/22]
Opponent(s)01  21.03.1989  16.06.1989  ADMISSIBLE
The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and
Northern Ireland Whitehall
London SW1A 2HB / GB
Opponent's representative
Beckham, Robert William
Defence Research Agency Intellectual Property Department DRA Farnborough R69 Building
Farnborough, Hants. GU14 6TD / GB
24.07.1989Invitation to proprietor to file observations on the notice of opposition
03.04.1990Reply of patent proprietor to notice(s) of opposition
12.04.1990Communication of observations of patent proprietor (Time limit: M04)
08.08.1990Reply of parties involved to observations of patent proprietor
24.10.1990Despatch of a communication from the opposition division (Time limit: M06)
24.04.1991Reply to a communication from the opposition division
27.11.1991Date of oral proceedings
05.02.1992Despatch of a communication from the opposition division (Time limit: M02)
05.02.1992Despatch of minutes of oral proceedings
02.06.1992Despatch of interlocutory decision in opposition
12.06.1992Legal effect of interlocutory decision in opposition
10.09.1992Despatch of communication that the patent will be maintained as amended
21.12.1992Fee for printing new specification paid
Fees paidRenewal fee
28.11.1985Renewal fee patent year 03
28.11.1986Renewal fee patent year 04
30.11.1987Renewal fee patent year 05
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Documents cited:Search[A]FR2253814  (RCA CORP [US])
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