US PATENT SUBCLASS 512 / 13
.~.~.~ Polycyclo ring system having the chalcogen containing ring as one of the cyclos

Current as of: June, 1999
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512 /   HD   PERFUME COMPOSITIONS

1  DF  PERFUME COMPOSITIONS {8}
8  DF  .~ Ring containing active ingredient {6}
11  DF  .~.~ Chalcogen in the ring {2}
13.~.~.~ Polycyclo ring system having the chalcogen containing ring as one of the cyclos

DEFINITION

Classification: 512/13

(under subclass 11) Compositions wherein the chalcogen containing ring is part of a polycyclo ring system.