3471422

Information

• Patent Grant
• 3471422

• References
• Source

• Patent Number

  3,471,422

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1969
  55 years ago

• CPC

  • C09D11/50 - Sympathetic, colour changing or similar inks
  • B41M5/283 - Inorganic thermochromic compounds
  • C08K5/0041 - Optical brightening agents, organic pigments
  • C09D11/105 - Alkyd resins
  • Y10S252/962 - Temperature or thermal history

• US Classifications

  • 436 - Chemistry: analytical and immunological testing
  • 252 - Compositions
  • 374 - Thermal measuring and testing
  • 524 - Synthetic resins or natural rubbers