3920802

Information

• Patent Grant
• 3920802

• References
• Source

• Patent Number

  3,920,802

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1975
  49 years ago

• CPC

  • G02B1/00 - Optical elements characterised by the material of which they are made
  • C01F5/28 - Fluorides
  • C01P2002/01 - depicted by a TEM-image
  • C01P2002/82 - by IR- or Raman-data
  • C01P2004/51 - Particles with a specific particle size distribution
  • C01P2004/61 - Micrometer sized

• US Classifications

  • 423 - Chemistry of inorganic compounds