US PATENT SUBCLASS 106 / 157.3
.~.~.~ Mineral acid (e.g., sulfuric, nitric, etc.)

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

*  DD  COATING OR PLASTIC COMPOSITIONS {40}
124.1  DF  .~ Proteinaceous material containing {21}
157.2  DF  .~.~ With element or inorganic compound except water {7}
157.3.~.~.~ Mineral acid (e.g., sulfuric, nitric, etc.)

DEFINITION

Classification: 106/157.3

Mineral acid (e.g., sulfuric, nitric, etc.):

(under subclass 157.2) Compositions wherein the inorganic compound is an inorganic acid.

(1). Note. Mineral acids include but are not limited to sulfuric, nitric, hydrochloric, and phosphoric acids.

(2) Note. All mineral acids are highly irritant and corrosive to human tissue.