3858912

Information

• Patent Grant
• 3858912

• References
• Source

• Patent Number

  3,858,912

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1975
  50 years ago

• CPC

  • F16L21/035 - placed around the spigot end before connection
  • F16L9/08 - of concrete, cement, or asbestos cement, with or without reinforcement
  • F16L25/0027 - Joints for pipes made of reinforced concrete
  • Y10S285/91 - Gaskets

• US Classifications

  • 285 - Pipe joints or couplings
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 277 - Seal for a joint or juncture