3836621

Information

• Patent Grant
• 3836621

• References
• Source

• Patent Number

  3,836,621

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1974
  50 years ago

• CPC

  • D02J1/221 - Preliminary treatments
  • D01D5/16 - using rollers, or like mechanical devices
  • D01D10/02 - Heat treatment
  • D01F6/74 - from polycondensates of cyclic compounds

• US Classifications

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