1898609

Information

• Patent Grant
• 1898609

• References
• Source

• Patent Number

  1,898,609

• Date Filed

  Not available

• Date Issued

  Tuesday, February 21, 1933
  92 years ago

• CPC

  • E05F3/108 - with piston rod protruding from the closer housing; Telescoping closers
  • E05Y2201/656 - Chains
  • E05Y2600/41 - Concealed
  • E05Y2900/132 - Doors
  • Y10T16/2766 - Concentric spring chamber
  • Y10T16/2799 - Spring and flexible link

• US Classifications

  • 016 - Miscellaneous hardware
  • 059 - Chain, staple, and horseshoe making