2459849

Information

• Patent Grant
• 2459849

• References
• Source

• Patent Number

  2,459,849

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1949
  76 years ago

• CPC

  • H01L21/14 - Treatment of the complete device
  • G01R1/30 - Structural combination of electric measuring instruments with basic electronic circuits
  • Y10T29/413 - Barrier layer device making

• US Classifications

  • 029 - Metal working
  • 257 - Active solid-state devices
  • 324 - Electricity: measuring and testing
  • 438 - Semiconductor device manufacturing: process