2976766

Information

• Patent Grant
• 2976766

• References
• Source

• Patent Number

  2,976,766

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1961
  63 years ago

• CPC

  • G02C5/2236 - comprising a sliding hinge member and a coil spring
  • G02C5/2254 - comprising elastic means other than coil spring
  • E05Y2201/474 - Compression springs
  • G02C2200/22 - Leaf spring
  • G02C2200/30 - Piston
  • G02C2200/32 - Oblong hole
  • Y10T16/526 - Eyeglass hinge
  • Y10T16/5383 - having transverse helical spring or elastic strip

• US Classifications

  • 351 - Optics: eye examining, vision testing and correcting
  • 016 - Miscellaneous hardware