US PATENT SUBCLASS 264 / 667
.~ Including specified molding pressure or controlling of molding pressure (e.g., cold isostatic pressing, hydrostatic pressure, etc.)

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

603  DF  OUTSIDE OF MOLD SINTERING OR VITRIFYING OF SHAPED INORGANIC ARTICLE OR PREFORM {30}
667.~ Including specified molding pressure or controlling of molding pressure (e.g., cold isostatic pressing, hydrostatic pressure, etc.) {1}
668  DF  .~.~> Producing metal nitride or silicon nitride containing product

DEFINITION

Classification: 264/667

Including specified molding pressure or controlling of molding pressure (e.g., cold isostatic pressing, hydrostatic pressure, etc.):

(under subclass 603) Process wherein a numeric pressure for molding is claimed or wherein there is a step of controlling molding pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

40.3, for processes of controlling fluid pressure in direct contact with molding material which include a step of sampling, audibly or chemically testing or inspecting, or otherwise physically or mechanically determining some variable condition in a shaped article, molding material, the mold or shaping surface.