3228425

Information

• Patent Grant
• 3228425

• References
• Source

• Patent Number

  3,228,425

• Date Filed

  Not available

• Date Issued

  Tuesday, January 11, 1966
  59 years ago

• CPC

  • F16L13/113 - for concrete pipes
  • F16L25/0027 - Joints for pipes made of reinforced concrete

• US Classifications

  • 138 - Pipes and tubular conduits
  • 285 - Pipe joints or couplings