3157653

Information

• Patent Grant
• 3157653

• References
• Source

• Patent Number

  3,157,653

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1964
  60 years ago

• CPC

  • C09B62/004 - Anthracene dyes
  • C09B62/4401 - with two or more reactive groups at least one of them being directly attached to a heterocyclic system and at least one of them being directly attached to a non-heterocyclic system
  • C09B62/4422 - the heterocyclic system being a pyrimidine ring

• US Classifications

  • 544 - Organic compounds