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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.:

US 5972241 B1

PDFFull Text
Date of Patent:
Oct. 26, 1999

Filed:

Nov. 06, 1997

Liquid crystal compounds having a chiral fluorinated terminal portion

Applicant:
Inventors:

Gilbert C Johnson, Lino Lakes, MN (US);

Marc D Radcliffe, Newport, MN (US);

Patricia M Savu, Maplewood, MN (US);

Daniel C Snustad, Woodbury, MN (US);

Terence D Spawn, West Lakeland Township, MN (US);

Assignee:

3M Innovative Properties Company, St. Paul, MN (US);

Attorney:

Kokko; Kent S.

Primary Examiner:

Shean C Wu

Int. Cl.
CPC ...
C09K / ; C09K / ; C07C / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
25229961 ; 25229962 ; 25229963 ; 544303 ; 546346 ; 549324 ; 549380 ; 548215 ; 568634 ; 568649 ; 568669 ; 570128 ; 570130 ; 570131 ; 570132 ; 570144 ; 570183 ; 570188 ; 560 65 ;
Abstract

Fluorine-containing, chiral liquid crystal compounds comprise (a) a chiral fluorochemical terminal portion containing at least one methylene group and optionally containing at least one catenary ether oxygen atom; (b) a saturated, chiral or achiral, hydrocarbon terminal portion; and (c) a central core connecting the terminal portions. The compounds have smectic mesophases or latent smectic mesophases and are useful, for example, in liquid crystal display devices.

Find Patent Forward Citations

Johnson, Gilbert. (1999). Liquid crystal compounds having a chiral fluorinated terminal portion (U.S. Patent No. 5972241). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5972241

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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