US PATENT SUBCLASS 34 / 409
.~.~ Including addition of treating agent

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

Internet Version by PATENTEC © 1999      Terms of Use


34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

282  DF  PROCESS {24}
406  DF  .~ Gas or vapor pressure is subatmospheric {3}
409.~.~ Including addition of treating agent {2}
410  DF  .~.~.~> Treating agent is inert gas
411  DF  .~.~.~> Treating agent is steam

DEFINITION

Classification: 34/409

Including addition of treating agent:

(under subclass 406) Process wherein a modifying agent is added to the treating process to regulate or promote the treating of the material without a chemical reaction.

(1) Note. See subclass 404 for a definition of a treating agent.