3705323

Information

• Patent Grant
• 3705323

• References
• Source

• Patent Number

  3,705,323

• Date Filed

  Not available

• Date Issued

  Tuesday, December 5, 1972
  52 years ago

• CPC

  • H01J29/14 - acting by discoloration
  • C01B33/2892 - containing an element or a compound occluded in the pores of the network
  • C09K9/00 - Tenebrescent materials

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 252 - Compositions