2819977

Information

• Patent Grant
• 2819977

• References
• Source

• Patent Number

  2,819,977

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1958
  67 years ago

• CPC

  • C03C3/326 - containing beryllium
  • Y10S501/902 - having ABBE number at least 70
  • Y10S501/904 - Infrared transmitting or absorbing

• US Classifications

  • 501 - Compositions: ceramic