3668142

Information

• Patent Grant
• 3668142

• References
• Source

• Patent Number

  3,668,142

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1972
  52 years ago

• CPC

  • C09K11/7738 - with alkaline earth metals
  • C01B25/325 - Preparation by double decomposition
  • C01F11/188 - Barium carbonate
  • C01F11/20 - Halides
  • C01F11/462 - Sulfates of Sr or Ba
  • C01F17/0012 - Compounds containing besides rare earth metals two or more other element with the exception of oxygen or hydrogen
  • C01F17/0031 - Halogen being the only anion
  • C01F17/0037 - Sulfur being the only anion
  • C01G21/00 - Compounds of lead
  • C01G21/20 - Sulfates
  • C01G41/00 - Compounds of tungsten
  • C09K11/00 - Luminescent
  • C09K11/08 - containing inorganic luminescent materials
  • C09K11/0833 - with alkali or alkaline earth metals
  • C09K11/616 - with alkali or alkaline earth metals
  • C09K11/65 - containing carbon
  • C09K11/668 - Sulfates
  • C09K11/68 - containing chromium, molybdenum or tungsten
  • C01P2002/50 - Solid solutions
  • C01P2004/20 - extending in two dimensions
  • C01P2004/61 - Micrometer sized
  • C01P2004/62 - Submicrometer sized
  • C01P2006/10 - Solid density
  • C01P2006/60 - Optical properties

• US Classifications

  • 252 - Compositions
  • 423 - Chemistry of inorganic compounds