3547581

Information

• Patent Grant
• 3547581

• References
• Source

• Patent Number

  3,547,581

• Date Filed

  Not available

• Date Issued

  Tuesday, December 15, 1970
  53 years ago

• CPC

  • C04B11/024 - Ingredients added before, or during, the calcining process
  • C01B7/191 - Hydrogen fluoride
  • C01F11/468 - Purification of calcium sulfates

• US Classifications

  • 423 - Chemistry of inorganic compounds
  • 106 - Compositions: coating or plastic