3581137

Information

• Patent Grant
• 3581137

• References
• Source

• Patent Number

  3,581,137

• Date Filed

  Not available

• Date Issued

  Tuesday, May 25, 1971
  53 years ago

• CPC

  • C03C3/087 - containing calcium oxide
  • C03C4/085 - for ultra-violet absorbing glass
  • H01J5/04 - Vessels or containers characterised by the material thereof
  • H01J61/40 - by light filters by coloured coatings in or on the envelope
  • H01K1/32 - provided with coatings on the walls Vessels or coatings theron characterised by the material thereof
  • Y10S501/905 - Ultraviolet transmitting or absorbing

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 427 - Coating processes
  • 501 - Compositions: ceramic