US PATENT SUBCLASS 514 / 289
.~.~.~.~.~ Two of the cyclos share at least three ring members (i.e., bridged) (e.g., morphinans, etc.)

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}
277  DF  .~.~ Hetero ring is six-membered consisting of one nitrogen and five carbon atoms {11}
279  DF  .~.~.~ Polycyclo ring system having the six-membered hetero ring as one of the cyclos {4}
284  DF  .~.~.~.~ Tetracyclo ring system having the six-membered hetero ring as one of the cyclos {2}
289.~.~.~.~.~ Two of the cyclos share at least three ring members (i.e., bridged) (e.g., morphinans, etc.)

DEFINITION

Classification: 514/289

Two of the cyclos share at least three ring members (i.e., bridged) (e.g., morphinans etc.):

(under subclass 284) Subject matter wherein two cyclos of the polycyclo ring system share at least three ring carbons.