US PATENT SUBCLASS 556 / 432
.~.~.~ Plural silicons bonded directly to the same or different benzene rings that form all or part of the chain

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}
431  DF  .~.~ Plural silicons bonded directly to the same carbon or attached by a chain consisting of carbons, which carbons may be part of a ring {3}
432.~.~.~ Plural silicons bonded directly to the same or different benzene rings that form all or part of the chain {1}
433  DF  .~.~.~.~> Two silicons bonded directly to the same oxygen

DEFINITION

Classification: 556/432

(under subclass 431) Compounds wherein the silicons are bonded directly to the same benzene ring or to different benzene rings, which rings form all or part of the chain.

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