US PATENT SUBCLASS 422 / 10
.~.~.~ Manipulating gaseous environment for preservative purpose

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

Internet Version by PATENTEC © 1999      Terms of Use


422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

1  DF  PROCESS DISINFECTING, PRESERVING, DEODORIZING, OR STERILIZING {15}
7  DF  .~ Maintaining environment nondestructive to metal {5}
9  DF  .~.~ Using gaseous preservative, preservative added to gaseous phase of environment, or maintaining gaseous phase nondestructive {2}
10.~.~.~ Manipulating gaseous environment for preservative purpose

DEFINITION

Classification: 422/10

Manipulating gaseous environment for preservative purpose:

(under subclass 9) Process involving the step of handling the gaseous phase which is for the sole purpose of preventing

damage to metal other than, per se, adding a substance to the gaseous phase.

SEE OR SEARCH CLASS

95, Gas Separation: Processes, appropriate subclasses for gas purification, per se, not combined with the use of treated gaseous phase to preserve metal.