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:
Mar. 26, 1991
Filed:
Dec. 01, 1988
Applicant:
Inventors:
George W Gray, North Humberside, GB;
David Lacey, North Humberside, GB;
Kenneth J Toyne, North Humberside, GB;
Richard M Scrowston, North Humberside, GB;
Lawrence K Chan, Middlesex, GB;
Madeline J Bradshaw, Near Newent, GB;
Victoria Brimmell, Ears Croome, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; G02F / ;
U.S. Cl.
CPC ...
25229965 ; 25229964 ; 25229966 ; 25229967 ; 3503 / ; 560 41 ;
Abstract
Amides having the following structure: ##STR1## used in ferroelectric smectic liquid crystal mixtures, especially as pitch compensators and liquid crystal compositions containing them.