3872921

Information

• Patent Grant
• 3872921

• References
• Source

• Patent Number

  3,872,921

• Date Filed

  Not available

• Date Issued

  Tuesday, March 25, 1975
  49 years ago

• CPC

  • F28F21/089 - Coatings, claddings or bonding layers made from metals or metal alloys
  • B32B15/016 - all layers being formed of aluminium or aluminium alloys
  • C22C21/00 - Alloys based on aluminium
  • F01P11/06 - Cleaning Combating corrosion
  • F28F21/084 - from aluminium or aluminium alloys
  • F01P2011/066 - Combatting corrosion
  • Y10S165/486 - Corrugated fins disposed between adjacent conduits

• US Classifications

  • 165 - Heat exchange