US PATENT SUBCLASS 106 / 482
.~.~.~.~ Inorganic silicon compound, e.g., diatomaceous earth, soil, glass, sand, etc., or material derived therefrom

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}
481  DF  .~.~.~ Silicon containing {1}
482.~.~.~.~ Inorganic silicon compound, e.g., diatomaceous earth, soil, glass, sand, etc., or material derived therefrom {5}
483  DF  .~.~.~.~.~> Aluminum compound containing, e.g., feldspar, mullite, etc. {3}
489  DF  .~.~.~.~.~> Glass containing
490  DF  .~.~.~.~.~> Organic silicon material containing
491  DF  .~.~.~.~.~> Organic material containing
492  DF  .~.~.~.~.~> Treatment of alkali silicate with mineral acid or product

DEFINITION

Classification: 106/482

Inorganic silicon compound, e.g., diatomaceous earth, soil, glass, sand, etc., or material derived therefrom:

(under subclass 481) Subject matter wherein the composition contains diatomaceous earth, soil, glass, an inorganic silicon compound or material derived therefrom.

(1) Note. For the purposes of these subclasses, 400+, glass will be considered to contain silicon and to not contain an alkaline earth metal unless contra is positively indicated.