US PATENT SUBCLASS 514 / 217
.~.~.~.~ Tricyclo ring system having the seven-membered hetero ring a one of the cyclos

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
183  DF  .~ Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., O,S,Se or Te) or nitrogen as the only ring hetero atoms DOAI {16}
212  DF  .~.~ Hetero ring is seven-membered consisting of one nitrogen and six carbon atoms {1}
213  DF  .~.~.~ Polycyclo ring system having the seven-membered hetero ring as one of the cyclos {4}
217.~.~.~.~ Tricyclo ring system having the seven-membered hetero ring a one of the cyclos

DEFINITION

Classification: 514/217

Tricyclo ring system having the seven-membered hetero ring as one of the cyclos:

(under subclass 213) Subject matter wherein the polycyclo ring system consists of exactly three rings.