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. 05, 1991
Filed:
Aug. 11, 1989
Applicant:
Inventors:
Gerd Heppke, Berlin, DE;
Feodor Oestreicher, Berlin, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
25229961 ; 25229963 ; 25229966 ; 25229967 ; 25229965 ; 25229901 ; 544298 ; 560 62 ; 560 64 ; 560102 ; 560 54 ; 528 25 ; 568 20 ; 568 24 ; 3503 / ;
Abstract
The chiral smetic liquid-crystalline compounds of the general formula (I)
Heppke, Gerd. (1991). Chiral smetic liquid crystals and glassy materials containing the same (U.S. Patent No. 4997591). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4997591
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile