US PATENT SUBCLASS 510 / 366
.~.~ For removing asphalt, tar, or hardened cementitious material (e.g., concrete, etc.)

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}
366.~.~ For removing asphalt, tar, or hardened cementitious material (e.g., concrete, etc.)

DEFINITION

Classification: 510/366

For removing asphalt, tar, or hardened cementitious material (e.g., concrete, etc.):

(under subclass 109) Compositions specialized for removing asphalt, tar, or hardened cementitious material from a substrate.

(1) Note. A hardened cementitious material is produced by drying a composition which includes an inorganic settable ingredient.

SEE OR SEARCH CLASS

134, Cleaning and Liquid Contact With Solids,

40, for processes of removing tar.