2891879

Information

• Patent Grant
• 2891879

• References
• Source

• Patent Number

  2,891,879

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1959
  66 years ago

• CPC

  • H01J19/00 - Details of vacuum tubes of the types covered by group H01J21/00
  • H01J2893/0023 - carbonising and other surface treatments
  • Y10S126/908 - Particular chemical
  • Y10S165/904 - Radiation
  • Y10S428/937 - Sprayed metal
  • Y10S428/939 - Molten or fused coating
  • Y10T428/12139 - Nonmetal particles in particulate component
  • Y10T428/31612 - As silicone, silane or siloxane

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 126 - Stoves and furnaces
  • 165 - Heat exchange
  • 252 - Compositions
  • 313 - Electric lamp and discharge devices
  • 427 - Coating processes
  • 445 - Electric lamp or space discharge component or device manufacturing