3623939

Information

• Patent Grant
• 3623939

• References
• Source

• Patent Number

  3,623,939

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1971
  53 years ago

• CPC

  • D01D5/23 - by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes
  • D01D5/22 - with a crimped or curled structure with a special structure to simulate wool
  • D01D5/253 - with a non-circular cross section Spinnerette packs therefor
  • Y10T428/2922 - Nonlinear [e.g., crimped, coiled, etc.]
  • Y10T428/2969 - Polyamide, polyimide or polyester
  • Y10T428/2973 - Particular cross section

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 264 - Plastic and nonmetallic article shaping or treating: processes