US PATENT SUBCLASS 514 / 513
.~.~ C-C(=X)-X-C containing (X is chalcogen and at least one X is other than oxygen)

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
506  DF  .~ Ester DOAI {10}
513.~.~ C-C(=X)-X-C containing (X is chalcogen and at least one X is other than oxygen)

DEFINITION

Classification: 514/513

C-C(=X)-X-C containing (X is chalcogen and at least one X is other than oxygen):

(under subclass 506) Subject matter wherein the ester contains the group group CXC wherein X is chalcogen and at least one is other than oxygen.

(1) Note. This subclass contains, for example: [figure] [caption], etc.