3857394

Information

• Patent Grant
• 3857394

• References
• Source

• Patent Number

  3,857,394

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1974
  50 years ago

• CPC

  • A61F13/472 - specially adapted for female use
  • A61F13/2051 - characterised by the material or the structure of the inner absorbing core
  • A61F13/476 - characterised by encircling the crotch region of the undergarment
  • A61M31/00 - Devices for introducing or retaining media
  • A61F2013/4729 - combining catamenial pad and tampon

• US Classifications

  • 604 - Surgery
  • 128 - Surgery
  • D24 - Medical and laboratory equipment