US PATENT SUBCLASS 424 / 471
.~.~.~ Plural concentric cores

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

400  DF  PREPARATIONS CHARACTERIZED BY SPECIAL PHYSICAL FORM {12}
464  DF  .~ Tablets, lozenges, or pills {5}
468  DF  .~.~ Sustained or differential release type {3}
471.~.~.~ Plural concentric cores

DEFINITION

Classification: 424/471

Plural concentric cores:

(under subclass 468) Subject matter which are composed of plural layers and the layers are plural concentric cores.