2992839

Information

• Patent Grant
• 2992839

• References
• Source

• Patent Number

  2,992,839

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1961
  63 years ago

• CPC

  • F16L21/035 - placed around the spigot end before connection
  • F16L13/124 - for concrete pipes

• US Classifications

  • 285 - Pipe joints or couplings