(under subclass 43) Compositions in which the gas producing the "bubbling" or "effervescence" is the result of an in situ chemical reaction.
(1) Note. Oxygen and halogen releasing compositions are excluded from this and indented subclasses and are classified below according to: (1) the function of the composition or (2) to the particular gaseous material being released or (3) the particular compound which releases said gaseous material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
40, for a composition in which a chemical reaction is employed for the production of a smoke, mist, or aerosol.
700, for a composition in which carbon dioxide is an active constituent.
SEE OR SEARCH CLASS 169, Fire Extinguishers, especially
6+, 27+, and 78+ for a fire extinguisher using gas produced in situ by a chemical reaction to produce pressure.
