(under subclass 1) Processes which include steps relating to the presence, absence or manipulation of gas in connection with the receiver.
(1) Note. Processes of treating the contents of the receiver while in the receiver, and also processes of pretreating the receiver with gaseous fluid are included.
SEE OR SEARCH THIS CLASS, SUBCLASS:
5+, for processes of filling receivers with gas and
nongaseous fluent materials.
8, for processes for evacuating receivers and subsequently filling with gas.
37+, for apparatus pertaining to the filling of receivers under conditions involving gas and contents material other than gas in a confined system, and see the search notes to subclass 37 for other apparatus in this and other classes for filling apparatus involving gaseous modification or application. SEE OR SEARCH CLASS
53, Package Making,
403, for processes for filling a receiver with gas with subsequent closing, and subclasses 432+ for processes in which vacuum treatment or gas treatment is applied for contents treatment.
95, Gas Separation: Processes, for processes of gas separation, per se.
137, Fluid Handling,
154+, for fluid handling pressure systems containing diverse fluids, subclasses 1+ for fluid handling processes involving gases, especially subclass 12.5 for processes for handling carbonated beverages.
