2093661

Information

• Patent Grant
• 2093661

• References
• Source

• Patent Number

  2,093,661

• Date Filed

  Not available

• Date Issued

  Tuesday, September 21, 1937
  87 years ago

• CPC

  • H01L21/161 - Preparation of the foundation plate, preliminary treatment oxidation of the foundation plate, reduction treatment
  • H01L21/02565 - Oxide semiconducting materials not being Group 12/16 materials
  • H01L21/02614 - Transformation of metal

• US Classifications

  • 148 - Metal treatment
  • 252 - Compositions
  • 257 - Active solid-state devices
  • 420 - Alloys or metallic compositions