A portable folding chair without legs has a seat and a backrest. In a compact position, the seat and backrest lie substantially in the same plane with the backrest located immediately to the rear and sides of the seat. The chair has an upright position where the backrest is mounted at an angle that is...http://www.google.de/patents/US6981741?utm_source=gb-gplus-sharePatent US6981741 - Portable folding chair
