3921636

Information

• Patent Grant
• 3921636

• References
• Source

• Patent Number

  3,921,636

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1975
  49 years ago

• CPC

  • A61F13/84 - Accessories, not otherwise provided for, for absorbent pads
  • A61F6/14 - intra-uterine type
  • A61K9/0036 - Devices retained in the vagina or cervix for a prolonged period
  • A61K9/0039 - Devices retained in the uterus for a prolonged period
  • A61K9/1652 - Polysaccharides
  • A61K9/2081 - with microcapsules or coated microparticles according to A61K9/50
  • A61K9/5042 - Cellulose; Cellulose derivatives
  • A61M31/002 - Devices for releasing a drug at a continuous and controlled rate for a prolonged period of time
  • A61F13/202 - Catamenial tampons
  • A61F13/2051 - characterised by the material or the structure of the inner absorbing core
  • A61F13/2074 - impregnated with hydrophobic, hydrophilic, skin enhancers, medicinal etc. substances
  • A61F13/8405 - Additives
  • A61F2013/15048 - for protection against contamination, or protection in using body disinfecting wipes
  • A61F2013/15113 - for haemorrhoids

• US Classifications

  • 424 - Drug, bio-affecting and body treating compositions
  • 128 - Surgery