3478209

Information

• Patent Grant
• 3478209

• References
• Source

• Patent Number

  3,478,209

• Date Filed

  Not available

• Date Issued

  Tuesday, November 11, 1969
  55 years ago

• CPC

  • C09K11/04 - containing natural or artificial radioactive elements or unspecified radioactive elements
  • G21H3/02 - in which material is excited to luminesce by the radiation
  • H01J65/08 - Lamps in which a screen or coating is excited to luminesce by radioactive material located inside the vessel
  • F21W2111/00 - Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in code F21W2101/00

• US Classifications

  • 250 - Radiant energy
  • 976 - Nuclear technology