US PATENT SUBCLASS 252 / 299.62
.~.~ Including fused or bridged rings

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


252 /   HD   COMPOSITIONS

299.01  DF  LIQUID CRYSTAL COMPOSITIONS {7}
299.6  DF  .~ Containing nonsteryl liquid crystalline compound of specified structure {7}
299.62.~.~ Including fused or bridged rings

DEFINITION

Classification: 252/299.62

Including fused or bridged rings:

(under subclass 299.6) Compositions wherein the liquid crystal compound has at least two rings with two or more carbon atoms in common, i.e., polycyclic rings.