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:
Jun. 14, 1994
Filed:
May. 11, 1993
Applicant:
Inventors:
Yasuyuki Tanaka, Tokyo, JP;
Haruyoshi Takatsu, Tokyo, JP;
Kiyohumi Takeuchi, Tokyo, JP;
Yuji Tamura, Saitama, JP;
Assignee:
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
570129 ; 558412 ; 585 25 ;
Abstract
A novel tetracyclic cyclohexylcyclohexene derivatives represented by formula: ##STR1## wherein ##STR2## n, X and Y are as defined in the specifications, are disclosed. The compounds are useful as electroptic display materials.