3902220

Information

• Patent Grant
• 3902220

• References
• Source

• Patent Number

  3,902,220

• Date Filed

  Not available

• Date Issued

  Tuesday, September 2, 1975
  49 years ago

• CPC

  • E05F1/1261 - for counterbalancing
  • E05Y2201/686 - Rods, links
  • E05Y2900/20 - for furnitures
  • Y10T16/27 - Checks and closers
  • Y10T16/53835 - including pivoted coaxial spring retaining bar

• US Classifications

  • 016 - Miscellaneous hardware