3855491

Information

• Patent Grant
• 3855491

• References
• Source

• Patent Number

  3,855,491

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1974
  50 years ago

• CPC

  • H01J17/066 - Cold cathodes
  • H01J61/00 - Gas- or vapour-discharge lamps
  • H01J61/68 - Lamps in which the main discharge is between parts of a current-carrying guide
  • H01J2893/0063 - Plasma light sources
  • H01J2893/0066 - Construction, material, support, protection and temperature regulation of electrodes Electrode cups

• US Classifications

  • 313 - Electric lamp and discharge devices