2937139

Information

• Patent Grant
• 2937139

• References
• Source

• Patent Number

  2,937,139

• Date Filed

  Not available

• Date Issued

  Tuesday, May 17, 1960
  65 years ago

• CPC

  • C07C37/009 - from waste water
  • C10G21/00 - Refining of hydrocarbon oils in the absence of hydrogen, by extraction with selective solvents

• US Classifications

  • 208 - Mineral oils: processes and products
  • 568 - Organic compounds