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:
Jul. 14, 1992
Filed:
Oct. 19, 1990
Applicant:
Inventors:
Assignee:
Showa Shell Sekiyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C07C / ;
U.S. Cl.
CPC ...
25229965 ; 25229901 ; 560 59 ; 560 73 ; 560 76 ; 560 86 ; 560102 ; 560108 ;
Abstract
A new tetrastable liquid crystal is provided which is useful for display and switching devices. The liquid crystal has the formula ##STR1## where R.sub.1 is a C.sub.5-18 alkyl group and R.sub.2 is a C.sub.4-15 alkyl group and * is an optically active center.
Hagiwara, Takashi. (1992). Liquid crystal compound (U.S. Patent No. 5130050). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5130050
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile