3549246

Information

• Patent Grant
• 3549246

• References
• Source

• Patent Number

  3,549,246

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1970
  54 years ago

• CPC

  • G02C5/2245 - comprising a sliding box containing a spring
  • G02C2200/24 - Coil spring pulled upon actuation
  • 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