US PATENT SUBCLASS 252 / 181.3
.~ Reactive compositions

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

181.1  DF  GETTERS OR GAS OR VAPOR GENERATING MATERIALS FOR ELECTRIC LAMPS, ELECTRIC SPACE DISCHARGE DEVICES, AND SIMILAR DEVICES {4}
181.3.~ Reactive compositions {1}
181.4  DF  .~.~> Containing magnesium, alkali-metal and alkaline-earth metal, or compound thereof

DEFINITION

Classification: 252/181.3

(under subclass 181.1) Materials which contain a plurality of substances not in chemical combination with each other, at least two of the substances being capable of chemically reacting with each other to produce the getter or gas or vapor generating material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

182+, for compositions for use as agents or materials in causing or carrying out changes by chemical reactions.