2440308

Information

• Patent Grant
• 2440308

• References
• Source

• Patent Number

  2,440,308

• Date Filed

  Not available

• Date Issued

  Tuesday, April 27, 1948
  76 years ago

• CPC

  • H01J19/02 - Electron-emitting electrodes Cathodes
  • H01J2893/0001 - Electrodes and electrode systems suitable for discharge tubes or lamps

• US Classifications

  • 331 - Oscillators
  • 307 - Electrical transmission or interconnection systems
  • 333 - Wave transmission lines and networks
  • 334 - Tuners
  • 439 - Electrical connectors