US PATENT SUBCLASS 556 / 482
.~.~.~ Silicon and carbon bonded directly to the same oxygen

Current as of: June, 1999
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556 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {3}
400  DF  .~ SILICON CONTAINING {19}
465  DF  .~.~ Carbon attached directly or indirectly to the silicon by nonionic bonding (e.g., silanes, etc.) {5}
482.~.~.~ Silicon and carbon bonded directly to the same oxygen {4}
483  DF  .~.~.~.~> Four oxygens bonded directly to the silicon
484  DF  .~.~.~.~> Halogen bonded directly to the silicon
485  DF  .~.~.~.~> Halogen bonded directly to acyclic carbon
486  DF  .~.~.~.~> Silicon and benzene ring bonded directly to the same oxygen

DEFINITION

Classification: 556/482

(under subclass 465) Compounds in which both silicon and carbon are bonded directly to the same oxygen.

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

SEE OR SEARCH CLASS

552, Organic Compounds,

653, for silicon derivatives of Vitamin D compounds, cholecalciferols, activated 7-dehydrocholesterols, dihydrotachysterols, 3-5 cyclovitamin D compounds, etc.