3492145

Information

• Patent Grant
• 3492145

• References
• Source

• Patent Number

  3,492,145

• Date Filed

  Not available

• Date Issued

  Tuesday, January 27, 1970
  55 years ago

• CPC

  • B41M5/32 - one component being a heavy metal compound
  • B41M5/132 - Chemical colour-forming components Additives or binders therefor
  • B41M5/1363 - Leuco dyes forming a complex with a metal cation

• US Classifications

  • 503 - Record receiver having plural interactive leaves or a colorless color former, method of use, or developer therefor
  • 162 - Paper making and fiber liberation