3257487

Information

• Patent Grant
• 3257487

• References
• Source

• Patent Number

  3,257,487

• Date Filed

  Not available

• Date Issued

  Tuesday, June 21, 1966
  58 years ago

• CPC

  • D01D5/092 - in shafts or chimneys
  • D01F6/60 - from polyamides
  • Y10S425/815 - Chemically inert or reactive atmosphere

• US Classifications

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