2430994

Information

• Patent Grant
• 2430994

• References
• Source

• Patent Number

  2,430,994

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1947
  77 years ago

• CPC

  • C23C14/26 - by resistance or inductive heating of the source
  • C03C2217/288 - Sulfides
  • C03C2218/151 - by vacuum evaporation

• US Classifications

  • 427 - Coating processes
  • 252 - Compositions
  • 313 - Electric lamp and discharge devices