3325299

Information

• Patent Grant
• 3325299

• References
• Source

• Patent Number

  3,325,299

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1967
  57 years ago

• CPC

  • C03C4/065 - for silver-halide free photochromic glass
  • C03C4/06 - for phototropic or photochromic glass
  • Y10S501/90 - Optical glass

• US Classifications

  • 501 - Compositions: ceramic
  • 065 - Glass manufacturing
  • 252 - Compositions
  • 359 - Optical: systems and elements