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. 05, 1995
Filed:
Jun. 17, 1994
Applicant:
Inventors:
Richard Buchecker, Zurich, CH;
Teodor Lukac, Aesch, CH;
Martin Schadt, Seltisberg, CH;
Haruyoshi Takatsu, Kodaira, JP;
Alois Villiger, Basle, CH;
Assignees:
Hoffman-La Roche Inc., Nutley, NJ (US);
Dainipppon Ink and Chemicals, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2522996 ; 549369 ;
Abstract
Compounds of the general formula ##STR1## wherein R.sup.1 represents vinyl or straight-chain alkenyl with 3 to 7 carbon atoms, the manufacture of such compounds, liquid crystalline mixtures which contain such compounds as well as the use of such compounds for electro-optical purposes.
Quick Actions:
Buchecker, Richard. (1995). Tricyclic fluorobenzonitrile derivatives (U.S. Patent No. 5447658). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5447658
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile