3752503

Information

• Patent Grant
• 3752503

• References
• Source

• Patent Number

  3,752,503

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1973
  51 years ago

• CPC

  • B42F11/00 - Filing appliances with separate intermediate holding means
  • Y10S24/30 - Separable-fastener or required component thereof
  • Y10T16/525 - Pliant or elastic hinge
  • Y10T16/5357 - Resiliently biased retaining means
  • Y10T24/45 - Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]

• US Classifications

  • 281 - Books, strips, and leaves
  • 016 - Miscellaneous hardware
  • 024 - Buckles, buttons, clasps, etc.