1837437

Information

• Patent Grant
• 1837437

• References
• Source

• Patent Number

  1,837,437

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1931
  93 years ago

• CPC

  • H01J5/42 - using intermediate part
  • H01J5/32 - Seals for leading-in conductors
  • H01J19/28 - Non-electron-emitting electrodes Screens
  • H01J2893/0012 - Constructional arrangements
  • H01J2893/0034 - Lamp bases

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 065 - Glass manufacturing
  • 174 - Electricity: conductors and insulators