(under subclass 553) Subject matter which includes structure to direct or cause the gas or vapor of the supported getter to be deposited only in certain areas within the envelope.
(1) Note. The subcombination of a discharge envelope with a support for a getter with a directional type outlet is classified here.
(2) Note. Classified here are getters within a discharge device envelope having an electrode with a shield to prevent the getter material from being deposited in unwanted areas of the tube or with a container with an outlet to have the
getter material leave the container in a predetermined direction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
481, for a cathode-ray tube with a getter.
558, for a getter, part of an electrode, supported by an electrode or connected to an electrode.
565, for a contained getter without means to direct the gas or vapor of the getter.
