2457635

Information

• Patent Grant
• 2457635

• References
• Source

• Patent Number

  2,457,635

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1948
  76 years ago

• CPC

  • C01D1/36 - by oxidation
  • C10G19/08 - Recovery of used refining agents

• US Classifications

  • 208 - Mineral oils: processes and products
  • 252 - Compositions
  • 423 - Chemistry of inorganic compounds
  • 568 - Organic compounds