US PATENT SUBCLASS 556 / 460
.~.~.~ Ring consisting of silicon and oxygen

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

Internet Version by PATENTEC © 1999      Terms of Use


556 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {3}
400  DF  .~ SILICON CONTAINING {19}
450  DF  .~.~ Two silicons bonded directly to the same oxygen {7}
460.~.~.~ Ring consisting of silicon and oxygen {1}
461  DF  .~.~.~.~> Benzene ring containing

DEFINITION

Classification: 556/460

(under subclass 450) Compounds containing a ring which includes at least one atom each of oxygen and silicon, and contains no other elements as ring members.

(1) Note. Examples of compounds provided for herein are: [figure] [figure]