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:
Dec. 01, 1992
Filed:
Dec. 21, 1989
Applicant:
Inventors:
Andreas Wachtler, Griesheim, DE;
Thomas Geelhaar, Mainz, DE;
Hans-Adolf Kurmeier, Seeheim-Jugenheim, DE;
Detlef Pauluth, Darmstadt, DE;
Assignee:
Merck Patent Gesellschaft Mit Beschraenkter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; G02F / ; C07D / ;
U.S. Cl.
CPC ...
25229961 ; 25229901 ; 546339 ; 359104 ;
Abstract
2,5-Disubstituted heterocycles of the formula I ##STR1## in which R.sup.1 and R.sup.2, each independently of one another, are alkyl, alkenyl or oxaalkyl having up to 12 C atoms,
Wachtler, Andreas. (1992). 2,5-disubstituted heterocycle and liquid-crystalline phase (U.S. Patent No. 5167859). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5167859
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile