2267639

Information

• Patent Grant
• 2267639

• References
• Source

• Patent Number

  2,267,639

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1941
  83 years ago

• CPC

  • C09B35/22 - the tetrazo component being a derivative of a diaryl ether

• US Classifications

  • 534 - Organic compounds
  • 564 - Organic compounds