Patent ID: 7114743

Claim:
A folding baby carriage that comprises four wheels and that is foldable from an unfolded opened state to a folded state whereby the four wheels thereof approach each other back and forth and from side to side, further comprising: a lower frame structure that is positioned over the four wheels to form a seating surface portion of a seat, and that is foldable from said opened state to said folded state so as to approach back and forth and from side to side with said four wheels; and an inverted U-shaped member that comprises two upwardly extending bars which extend upward from two sides of said seating surface portion; wherein said inverted U-shaped member remains on a single plane both in said opened state and in said folded state without being bent out of said plane, said two upwardly extending bars respectively have two upper ends that remain a same distance apart from one another in both said opened state and said folded state, and said two upwardly extending bars respectively have two lower ends that are arranged and adapted to be closer together to one another in said folded state and farther apart from one another in said opened state.