US PATENT SUBCLASS 445 / 50
.~.~.~ Emissive type


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



445 /   HD   ELECTRIC LAMP OR SPACE DISCHARGE COMPONENT OR DEVICE MANUFACTURING

1  DF  PROCESS {13}
46  DF  .~ Electrode making {5}
49  DF  .~.~ Electrode shaping {1}
50.~.~.~ Emissive type


DEFINITION

Classification: 445/50

Emissive type:

(under subclass 49) Method for manufacturing or fabricating an electrode of the type which emits or gives off electrons, the electrodes being itself eventually consumed in the process.

SEE OR SEARCH THIS CLASS, SUBCLASS:

51, for methods of making emissive type electrodes without involving a shaping operation.

SEE OR SEARCH CLASS

252, Compositions,

500+, for electrically conductive or emissive compositions.

313, Electric Lamp and Discharge Devices,

326+, for electrode and shield structure of lamp and discharge devices, note especially subclass 346 for cathode containing or coated with electron emissive material.