3554697

Information

• Patent Grant
• 3554697

• References
• Source

• Patent Number

  3,554,697

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1971
  53 years ago

• CPC

  • C01B17/92 - Recovery from acid tar or the like

• US Classifications

  • 423 - Chemistry of inorganic compounds
  • 023 - Chemistry: physical processes