US PATENT SUBCLASS 510 / 324
.~.~.~ With nitrogen, oxygen, or sulfur containing optical brightener

Current as of: June, 1999
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510 /   HD   CLEANING COMPOSITIONS FOR SOLID SURFACES, AUXILIARY COMPOSITIONS THEREFOR, OR PROCESSES OF PREPARING THE COMPOSITIONS

108  DF  CLEANING COMPOSITIONS OR PROCESSES OF PREPARING (E.G., SODIUM BISULFATE COMPONENT, ETC.) {21}
109  DF  .~ For cleaning a specific substrate or removing a specific contaminant (e.g., for smoker's pipe, etc.) {50}
276  DF  .~.~ For textile material (e.g., laundry detergent, etc.) {30}
324.~.~.~ With nitrogen, oxygen, or sulfur containing optical brightener {2}
325  DF  .~.~.~.~> Liquid composition (e.g., slurry, etc.)
326  DF  .~.~.~.~> Process of preparing (other than mere combining of components)

DEFINITION

Classification: 510/324

With nitrogen, oxygen, or sulfur containing optical

brightener:

(under subclass 276) Compositions which additionally include a component containing oxygen, nitrogen, or sulfur which fluoresces and imparts a brighter, less dingy (e.g., white or bluish) hue to the laundered article.

(1) Note. Optical brighteners are also referred to as optical bleaches, which are distinct from chemical bleaches.