2431923

Information

• Patent Grant
• 2431923

• References
• Source

• Patent Number

  2,431,923

• Date Filed

  Not available

• Date Issued

  Tuesday, December 2, 1947
  77 years ago

• CPC

  • C03C17/22 - with other inorganic material
  • C03C2217/288 - Sulfides
  • C03C2218/151 - by vacuum evaporation
  • Y10T428/24868 - Translucent outer layer

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof
  • 359 - Optical: systems and elements
  • 427 - Coating processes
  • 428 - Stock material or miscellaneous articles