US PATENT SUBCLASS 140 / 71.5
.~ Electric lamp or electric space discharge device electrode


Current as of: June, 1999
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140 /   HD   WIREWORKING

71 R  DF  ARTICLE MAKING OR FORMING {22}
71.5.~ Electric lamp or electric space discharge device electrode {1}
71.6  DF  .~.~> Filament mounting


DEFINITION

Classification: 140/71.5

(under subclass 71) Subject matter where the article made is an electric lamp or electric space discharge device electrode or electrode assembly.

(1) Note. Electric space discharge devices include spark plugs, radio tubes, X-ray tubes, cathode ray tubes and similar electric space discharge devices.

(2) Note. The electrode made may be a grid, filament, or any other electrode which is made of wire, and the manufacture of the article may include mounting the electrode upon its support where only wireworking operations are included in the claims.

(3) Note. Devices, see Class 445, Electric Lamp or Space Discharge Component of Device Manufacturing, subclasses 35+, 46+ and 66+ and the search notes thereunder.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices, appropriate subclasses for electric lamps and electric space discharge devices. Note

326, for the electrodes for electric lamps and electric space discharge devices, per se, and subclasses 542+ for photo cathodes, per se, or combined with a phospher or a envelope. 445, Electric Lamp or Space Discharge Component or Device Manufacturing,

35+, 46+ and 66+ and the search notes thereunder for other classes which provide for processes or apparatus for the manufacture of electric lamps or electric space discharge devices.