3342634

Information

• Patent Grant
• 3342634

• References
• Source

• Patent Number

  3,342,634

• Date Filed

  Not available

• Date Issued

  Tuesday, September 19, 1967
  58 years ago

• CPC

  • H01J19/00 - Details of vacuum tubes of the types covered by group H01J21/00
  • C23C18/1216 - Metal oxides
  • C23C18/1275 - performed under inert atmosphere
  • C23C22/74 - for obtaining burned-in conversion coatings
  • C23C22/84 - Dyeing
  • H01J1/26 - Supports for the emissive material
  • H01J19/36 - Cooling of anodes
  • H01J2893/0023 - carbonising and other surface treatments
  • H01J2893/0027 - Mitigation of temperature effects

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 427 - Coating processes