1641965

Information

• Patent Grant
• 1641965

• References
• Source

• Patent Number

  1,641,965

• Date Filed

  Not available

• Date Issued

  Tuesday, September 13, 1927
  97 years ago

• CPC

  • D06P1/626 - Sulfocarboxylic acids
  • D06P1/224 - using vat dyes in unreduced pigment state
  • Y10S8/921 - Cellulose ester or ether

• US Classifications

  • 008 - Bleaching and dyeing