2921163

Information

• Patent Grant
• 2921163

• References
• Source

• Patent Number

  2,921,163

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1960
  65 years ago

• CPC

  • H01H1/66 - Contacts sealed in an evacuated or gas-filled envelope
  • H01H1/0201 - Materials for reed contacts
  • H01H51/287 - Details of the shape of the contact springs
  • H01J2893/0073 - Discharge tubes with liquid poolcathodes constructional details

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets
  • 200 - Electricity: circuit makers and breakers
  • 218 - High-voltage switches with arc preventing or extinguishing devices