2219925

Information

• Patent Grant
• 2219925

• References
• Source

• Patent Number

  2,219,925

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1940
  84 years ago

• CPC

  • H01J19/34 - forming part of the envelope
  • H01J19/52 - without fixed connection between spacing member and envelope
  • H01J2893/0003 - Anodes forming part of vessel walls
  • H01J2893/0009 - Electrode system pressing against vessel wall

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 174 - Electricity: conductors and insulators
  • 445 - Electric lamp or space discharge component or device manufacturing