The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 1987
Filed:
Dec. 05, 1985
Applicant:
Inventors:
Lawrence Kam Ming Chan, Hull, GB;
George W Gray, Cottingham, GB;
Kenneth J Toyne, Hull, GB;
David Lacey, Hull, GB;
Rudolf Eidenschink, Munster, DE;
Michael Romer, Rodgau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; G02F / ;
U.S. Cl.
CPC ...
3503 / ; 2522995 ; 2522996 ; 25229966 ; 350346 ; 3503 / ;
Abstract
Novel terphenyls having a relatively high clearing point and which are suitable for use in liquid crystal materials or in the preparation of compounds for use in such material are characterized by a formula: ##STR1## wherein: R.sub.1 is selected from H, alkyl, alkoxy, alkylcarbonyl, alkylcarbonyloxy and alkoxycarbonyloxy;