US PATENT SUBCLASS 510 / 195
.~.~ For household drain or sewer pipe

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}
195.~.~ For household drain or sewer pipe {1}
196  DF  .~.~.~> Exothermic (e.g., containing free metal, such as Al, etc.)

DEFINITION

Classification: 510/195

For household drain or sewer pipe:

(under subclass 109) Compositions specialized for cleaning household drains or sewer pipes.