Powered invalid chair and handle control therefor

• US 2,742,973 A
• Filed: 01/28/1953
• Issued: 04/24/1956
• Est. Priority Date: 02/01/1952
• Status: Expired due to Term

• Current Assignee: Ingolf Johannesen Hans Arne
• Original Assignee: Ingolf Johannesen Hans Arne
• Inventors: INGOLF JOHANNESEN HANS ARNE
• Application Number:
  US03/333,810
• Time in Patent Office: 1,182 Days
• US Class Current: 180/8.2
• CPC Class Codes: A61G 5/061 for climbing stairs
• CPC Class Codes: A61G 5/065 with three or more wheels mounted on a rotary cross member, e.g. spiders or spoked wheels with small wheels at the end of the spokes
• CPC Class Codes: Y10S 180/907 Motorized wheelchairs
• CPC Class Codes: Y10S 280/10 Stair climbing chairs

Claims