2990580

Information

• Patent Grant
• 2990580

• References
• Source

• Patent Number

  2,990,580

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1961
  63 years ago

• CPC

  • B29C71/02 - Thermal after-treatment
  • B29C35/049 - using steam or damp
  • B29C2035/042 - other than water
  • B29C2035/044 - mercury
  • B29C2071/022 - Annealing
  • B29K2023/06 - PE
  • B29L2023/22 - Tubes or pipes

• US Classifications

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