US PATENT SUBCLASS 264 / 42
.~ Of inorganic materials

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

41  DF  PORE FORMING IN SITU (E.G., FOAMING, ETC.) {6}
42.~ Of inorganic materials {1}
43  DF  .~.~> Including vitrification or firing {1}

DEFINITION

Classification: 264/42

(under subclass 41) Processes wherein the material that is foamed is inorganic in nature.

SEE OR SEARCH THIS CLASS, SUBCLASS:

332, and 333, for general processes for molding inorganic materials employing heat or pressure.