3650680

Information

• Patent Grant
• 3650680

• References
• Source

• Patent Number

  3,650,680

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1972
  52 years ago

• CPC

  • C01G31/02 - Oxides
  • C23C14/083 - of refractory metals or yttrium
  • C23C14/24 - Vacuum evaporation
  • C23C14/58 - After-treatment
  • C23C14/5806 - Thermal treatment
  • C23C14/5846 - Reactive treatment
  • C23C14/5853 - Oxidation
  • C30B23/007 - Growth of whiskers or needles
  • C30B29/16 - Oxides
  • C01P2004/10 - extending in one dimension
  • C01P2006/60 - Optical properties

• US Classifications

  • 423 - Chemistry of inorganic compounds