3846868

Information

• Patent Grant
• 3846868

• References
• Source

• Patent Number

  3,846,868

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1974
  50 years ago

• CPC

  • E05F1/1269 - with a traction spring
  • E05D15/264 - for bi-fold wings
  • E05Y2800/672 - Glass
  • E05Y2900/132 - Doors
  • Y10T16/5353 - Resiliently biased hinge
  • Y10T16/53836 - Over-center spring or linkage travel [e.g., "holdback hinge"]

• US Classifications

  • 016 - Miscellaneous hardware
  • 160 - Flexible or portable closure, partition, or panel