3891997

Information

• Patent Grant
• 3891997

• References
• Source

• Patent Number

  3,891,997

• Date Filed

  Not available

• Date Issued

  Tuesday, July 1, 1975
  49 years ago

• CPC

  • A61F2/32 - for the hip
  • A61B90/39 - Markers
  • A61F2002/3008 - radio-opaque
  • A61F2002/30248 - Quarter-spheres
  • A61F2002/3082 - Grooves
  • A61F2002/3266 - Wire ring
  • A61F2002/344 - the inner shell having an inner hip femoral head-receiving cavity offset from its centre line
  • A61F2002/3459 - made of different partially-spherical portions
  • A61F2230/0071 - spherical
  • A61F2250/0098 - radio-opaque

• US Classifications

  • 623 - Prosthesis