US PATENT SUBCLASS 106 / 468
.~.~.~.~.~.~ Clay or material derived from clay containing, e.g., bentonite, montmorillonite, etc.


Current as of: June, 1999
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106 /   HD   COMPOSITIONS: COATING OR PLASTIC

*  DD  MATERIALS OR INGREDIENTS {7}
400  DF  .~ Pigment, filler, or aggregate compositions, e.g., stone, shale, pebbles, rock, etc. {1}
401  DF  .~.~ Composition contains identified material other than water {25}
461  DF  .~.~.~ Alkaline earth metal compound containing, other than glass, e.g., ettringite, gypsum, barium sulfate, anhydrite, etc. {4}
466  DF  .~.~.~.~ Soil or inorganic silicon compound containing, e.g., granite, chrysotile, asbestos, etc. {3}
467  DF  .~.~.~.~.~ Aluminum compound containing, e.g., zeolites, perlite, etc. {1}
468.~.~.~.~.~.~ Clay or material derived from clay containing, e.g., bentonite, montmorillonite, etc.


DEFINITION

Classification: 106/468

Clay or material derived from clay containing, e.g., bentonite, montmorillonite, etc.:

(under subclass 467) Subject matter wherein the composition contains clay or a material indicated to have been derived from clay, e.g., montmorillonite, bentonite, kaolin, etc.

(1) Note. Some clays, such as montmorillonites, bentonite, etc., contain an alkaline earth metal and therefor make a composition containing them proper for this subclass alone; however, note that kaolin would not bring a composition into this area unless the composition also contained an alkaline earth metal.