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. 21, 1976
Filed:
Mar. 27, 1974
Applicant:
Inventors:
Arthur Boller, Binningen, CH;
Hanspeter Scherrer, Therwil, CH;
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
252299 ; 350150 ; 3501 / ;
Abstract
Liquid crystalline mixtures comprising at least three compounds of the formula ##SPC1## Wherein R is n-butyl, n-pentyl, n-hexyl, n-heptyl or n-octyl, which may additionally contain other nematic or non-nematic substances, are described. The liquid crystalline mixtures are useful, for example, as dielectrics for electro-optical purposes.