3615761

Information

• Patent Grant
• 3615761

• References
• Source

• Patent Number

  3,615,761

• Date Filed

  Not available

• Date Issued

  Tuesday, October 26, 1971
  53 years ago

• CPC

  • C03C4/065 - for silver-halide free photochromic glass
  • C03C3/16 - containing phosphorus
  • C03C3/17 - containing aluminium or beryllium
  • C03C10/00 - Devitrified glass ceramics

• US Classifications

  • 501 - Compositions: ceramic