1892489

Information

• Patent Grant
• 1892489

• References
• Source

• Patent Number

  1,892,489

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1932
  92 years ago

• CPC

  • D06P1/67341 - of elements different from the alkaline or alkaline-earth metals or with anions containing those elements
  • D06P3/6016 - using basic dyes

• US Classifications

  • 536 - Organic compounds