3889989

Information

• Patent Grant
• 3889989

• References
• Source

• Patent Number

  3,889,989

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1975
  50 years ago

• CPC

  • F16L23/0286 - the shoulder not being formed from the pipe
  • F16L19/106 - the ring comprising a shoulder against which the pipe end abuts
  • F16L19/12 - with additional sealing means

• US Classifications

  • 285 - Pipe joints or couplings