3715221

Information

• Patent Grant
• 3715221

• References
• Source

• Patent Number

  3,715,221

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1973
  52 years ago

• CPC

  • C03C3/068 - containing rare earths
  • C03C3/072 - containing boron
  • C03C4/12 - for luminescent glass for fluorescent glass
  • Y10S501/901 - having R.I. at least 1.8
  • Y10S501/902 - having ABBE number at least 70

• US Classifications

  • 501 - Compositions: ceramic