3773874

Information

• Patent Grant
• 3773874

• References
• Source

• Patent Number

  3,773,874

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1973
  51 years ago

• CPC

  • B28B21/94 - for impregnating or coating by applying liquids or semi-liquids
  • E21B43/10 - Setting of casings, screens, liners or the like in wells
  • F16L1/038 - the pipes being made in situ

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 425 - Plastic article or earthenware shaping or treating: apparatus