2191346

Information

• Patent Grant
• 2191346

• References
• Source

• Patent Number

  2,191,346

• Date Filed

  Not available

• Date Issued

  Tuesday, February 20, 1940
  84 years ago

• CPC

  • H01K5/02 - with connections made at opposite ends
  • H01J5/42 - using intermediate part
  • H01J5/44 - Annular seals disposed between the ends of the vessel
  • H01K1/44 - directly applied to, or forming part of, the vessel
  • H01K3/20 - Sealing-in wires directly into the envelope
  • H01J2893/0034 - Lamp bases
  • H01J2893/0036 - having wires, ribbons or tubes placed between two vessel walls and being perpendicular to at least one of said walls

• US Classifications

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