US PATENT SUBCLASS 568 / 5
.~.~.~.~ Sulfur, oxygen, halogen or Group IA or IIA light metal containing

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
1  DF  .~ BORON CONTAINING {4}
3  DF  .~.~ Plural borons containing {1}
4  DF  .~.~.~ Ten or more borons containing (e.g., decaborane, etc.) {1}
5.~.~.~.~ Sulfur, oxygen, halogen or Group IA or IIA light metal containing

DEFINITION

Classification: 568/5

(under subclass 4) Compounds which contain sulfur, oxygen, halogen, or a metal selected from Group IA or IIA of the Periodic Table having a specific gravity less than four.