1921398

Information

• Patent Grant
• 1921398

• References
• Source

• Patent Number

  1,921,398

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1933
  91 years ago

• CPC

  • A61K38/015 - from keratin
  • C07K14/4741 - Keratin; Cytokeratin
  • Y10S530/842 - Skin hair nails sebaceous glands cerumen

• US Classifications

  • 530 - Chemistry: natural resins or derivatives