3644773

Information

• Patent Grant
• 3644773

• References
• Source

• Patent Number

  3,644,773

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  53 years ago

• CPC

  • H01K1/50 - Selection of substances for gas fillings Specified pressure thereof
  • H01K1/56 - characterised by the material of the getter
  • Y02B20/12 - Halogen lamps

• US Classifications

  • 313 - Electric lamp and discharge devices