US PATENT SUBCLASS 514 / 216
.~.~.~.~ Two of the cyclos share at least three ring carbons (i.e., bridged)

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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}
216.~.~.~.~ Two of the cyclos share at least three ring carbons (i.e., bridged)

DEFINITION

Classification: 514/216

Two of the cyclos share at least three ring carbons (i.e., bridged):

(under subclass 213) Subject matter wherein two cyclos of the polycyclo ring system share at least three ring carbons.

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