3720442

Information

• Patent Grant
• 3720442

• References
• Source

• Patent Number

  3,720,442

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  51 years ago

• CPC

  • A47C1/023 - the parts being horizontally-adjustable seats; Expandable seats or the like
  • A47C3/24 - with vertical spindle
  • A47C3/265 - with rack-and-pinion gearing
  • A47C7/402 - adjustable in height
  • A47D1/002 - adjustable
  • A47D1/004 - in height
  • A47D11/02 - Chairs convertible into children's chairs

• US Classifications

  • 297 - Chairs and seats