Phenylcyclohexyldioxanderivate mit einer Aetherbindung für elektrooptische Stoffe

European patent · EP0452274 · Deleted

Register entry

Publication number
EP0452274
Application number
EP91810258
Kind
European patent with effect for Switzerland and Liechtenstein
Status
Deleted
Specification
Granted
Filed
Apr 9, 1991
Published
Oct 16, 1991
Granted
Jun 28, 1995
Deleted
Apr 30, 1997
Reason
Annual fee unpaid
IPC classes
C07D 319/06 (2006.01)
C09K 19/34 (2006.01)
Priority
JP A 97059/90 12.04.1990
JP A 97060/90 12.04.1990
JP A 256518/90 26.09.1990
Filing language
English
Source
Swissreg

History

What the Federal Institute of Intellectual Property published about this title, newest first.

  1. Dec 15, 1997

    Deleted, fee unpaid

    Published in PIDTJ No 23 in 1997

  2. Sep 13, 1996

    Transferred

    Owner
    Dainippon Ink and, Chemicals, Inc., 35-58, 3-chome Sakashita, Itabashi-ku/Tokyo, Japan, F. Hoffmann-La Roche AG, Grenzacherstrasse 124, Postfach, 4002 Basel → Dainippon Ink and, Chemicals, Inc., 35-58, 3-chome Sakashita, Itabashi-ku/Tokyo, Japan, MERCK PATENT GmbH, Frankfurter Strasse 250, D-64293 Darmstadt, Germany

    Published in PIDTJ No 17 in 1996

  3. Aug 15, 1995

    Granted

    Published in PIDTJ No 15 in 1995

Parties

Holder

Dainippon Ink and Chemicals, Inc.

35-58, 3-chome Sakashita, Itabashi-ku/Tokyo, JP

Merck Patent GmbH

MERCK PATENT GmbH

Frankfurter Strasse 250, D-64293 Darmstadt, DE

Agent

Troesch Scheidegger Werner AG

Siewerdtstrasse 95 Postfach, 8050 Zürich

Inventor

Tanaka, Yasuyuki

Bunkyo-ku Tokyo, JP

Takatsu, Haruyoshi

Kodaira-shi Tokyo, JP

Takeuchi, Kiyofumi

Itabashi-ku Tokyo, JP

Schadt, Martin

CH-4411 Seltisberg

Buchecker, Richard

CH-8008 Zürich

The register names each party by name and address. A holder or agent is linked to an organization where exactly one entity of the commercial register bears its name; the street of a party not so recognised is not shown here.