2457657

Information

• Patent Grant
• 2457657

• References
• Source

• Patent Number

  2,457,657

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1948
  76 years ago

• CPC

  • B22D31/005 - Sealing or impregnating porous castings
  • C08G63/52 - Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
  • C08G63/676 - in which at least one of the two components contains aliphatic unsaturation
  • Y10T428/31681 - Next to polyester, polyamide or polyimide [e.g., alkyd, glue, or nylon, etc.]

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 525 - Synthetic resins or natural rubbers