2770003

Information

• Patent Grant
• 2770003

• References
• Source

• Patent Number

  2,770,003

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1956
  68 years ago

• CPC

  • E05F3/108 - with piston rod protruding from the closer housing; Telescoping closers
  • E05Y2900/132 - Doors
  • Y10T16/2766 - Concentric spring chamber
  • Y10T16/2782 - Oscillating cylinder
  • Y10T16/281 - Pneumatic

• US Classifications

  • 016 - Miscellaneous hardware
  • 188 - Brakes
  • 267 - Spring devices