US PATENT SUBCLASS 556 / 442
.~.~.~.~ Silicon is bonded directly to the oxy of the -COO- group

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}
436  DF  .~.~ Carbonyl attached directly or indirectly to silicon by nonionic bonding {1}
437  DF  .~.~.~ The carbonyl is part of a -COO- group {4}
442.~.~.~.~ Silicon is bonded directly to the oxy of the -COO- group

DEFINITION

Classification: 556/442

(under subclass 437) Compounds in which silicon is bonded directly to the oxy of the -COO- group.

(1) Note. An example of a compound provided for herein is: [figure]