2457626

Information

• Patent Grant
• 2457626

• References
• Source

• Patent Number

  2,457,626

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1948
  77 years ago

• CPC

  • H01J19/38 - Control electrodes
  • H01J2893/0018 - Bar or cage-like grids
  • Y10T428/12444 - Embodying fibers interengaged or between layers [e.g., paper, etc.]

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 313 - Electric lamp and discharge devices
  • 420 - Alloys or metallic compositions