1958416

Information

• Patent Grant
• 1958416

• References
• Source

• Patent Number

  1,958,416

• Date Filed

  Not available

• Date Issued

  Tuesday, May 15, 1934
  90 years ago

• CPC

  • C10C1/04 - by distillation
  • C10C1/16 - Winning of pitch

• US Classifications

  • 208 - Mineral oils: processes and products
  • 203 - Distillation: processes, separatory