3922142

Information

• Patent Grant
• 3922142

• References
• Source

• Patent Number

  3,922,142

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1975
  49 years ago

• CPC

  • D06P1/227 - Specific dyes not provided for in groups D06P1/228 - D06P1/28
  • C07D221/14 - Aza-phenalenes
  • C09B5/62 - Cyclic imides or amidines of peri-dicarboxylic acids of the anthracene, benzanthrene, or perylene series
  • C09B57/08 - Naphthalimide dyes Phthalimide dyes
  • C09B57/12 - Perinones
  • Y10T428/2481 - including layer of mechanically interengaged strands, strand-portions or strand-like strips

• US Classifications

  • 008 - Bleaching and dyeing
  • 428 - Stock material or miscellaneous articles
  • 546 - Organic compounds