2977639

Information

• Patent Grant
• 2977639

• References
• Source

• Patent Number

  2,977,639

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1961
  64 years ago

• CPC

  • B29C44/16 - shaped by the expansion of the material
  • Y10S264/11 - Molding styropor using steam probes-batch

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 156 - Adhesive bonding and miscellaneous chemical manufacture