US PATENT SUBCLASS 523 / 121
.~.~.~ Aperture affecting composition, e.g., earplug, dilator, etc.

Current as of: June, 1999
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523 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF {71}
105  DF  .~.~ Nonmedicated composition specifically intended for contact with living animal tissue or process of preparing; other than apparel {7}
121.~.~.~ Aperture affecting composition, e.g., earplug, dilator, etc.

DEFINITION

Classification: 523/121

Aperture affecting composition, e.g, earplug, dilator, etc.:

(under subclass 105) Subject matter wherein said composition is used to affect a body aperture.

(1) Note. Compositions used to fabricate an earplug which is to be inserted into the ear to seal the auditory canal of the ear are classified herein.