3840257

Information

• Patent Grant
• 3840257

• References
• Source

• Patent Number

  3,840,257

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1974
  50 years ago

• CPC

  • F16L19/046 - consisting of a soft ring
  • Y10S285/91 - Gaskets

• US Classifications

  • 285 - Pipe joints or couplings