US PATENT SUBCLASS 106 / 640
.~.~ Free metal or alloy containing (e.g., dust, powder, etc.)

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

*  DD  COATING OR PLASTIC COMPOSITIONS {40}
638  DF  .~ Inorganic settable ingredient containing {30}
640.~.~ Free metal or alloy containing (e.g., dust, powder, etc.) {2}
641  DF  .~.~.~> Aluminum {1}
643  DF  .~.~.~> Iron or steel {1}

DEFINITION

Classification: 106/640

Free metal or alloy containing (e.g., dust, powder, etc.):

(under subclass 638) Subject matter employing a free metal or alloy, e.g., dust, powder, etc.

(1) Note. For the purposes of this subclass a free metal or alloy is defined as any metal in the zero valence state.

SEE OR SEARCH THIS CLASS, SUBCLASS:

403+, for a filler or aggregate composition, per se, which may be used in a settable composition and contains a free metal or alloy.