2232780

Information

• Patent Grant
• 2232780

• References
• Source

• Patent Number

  2,232,780

• Date Filed

  Not available

• Date Issued

  Tuesday, February 25, 1941
  83 years ago

• CPC

  • C09K11/085 - Vanadates
  • H01J61/0677 - characterised by the electron emissive material
  • Y10S315/01 - Fluorescent lamp circuits with more than two principle electrodes

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 252 - Compositions
  • 315 - Electric lamp and discharge devices: systems
  • 427 - Coating processes
  • 445 - Electric lamp or space discharge component or device manufacturing