3862916

Information

• Patent Grant
• 3862916

• References
• Source

• Patent Number

  3,862,916

• Date Filed

  Not available

• Date Issued

  Tuesday, January 28, 1975
  50 years ago

• CPC

  • D21H25/18 - of old paper as in books, documents
  • B41M7/0063 - Preservation or restoration of currency, books or archival material
  • C08K3/20 - Oxides Hydroxides
  • C08K5/02 - Halogenated hydrocarbons
  • C08K5/05 - Alcohols Metal alcoholates
  • C08K5/09 - Carboxylic acids Metal salts thereof Anhydrides thereof
  • C08K5/13 - Phenols Phenolates

• US Classifications

  • 524 - Synthetic resins or natural rubbers
  • 252 - Compositions