A folding frame includes four vertical legs and at least one shelf pivotally connected to the four vertical legs, and each shelf can be folded vertically upwards. The folding frame also includes two support beams located on the lower surface and opposite ends of each shelf, and each support beam is pivotally connected to two of the four vertical legs and can be folded horizontally inward. The folding frame can move between an unfolded position, in which each shelf is horizontal and supported by two support beams, and a folded position, in which each shelf is folded vertically upward and the support beams are folded horizontally inward.
Its similar patents are:
AU2004247054、CA25 19099、EP 1635676、JP2007500578、MXPA050 12809、USRE4 1763、WO2004 1 1022 1
As can be seen from the legal status of its PCT patent, The following countries have been designated: AE ag al am at au az ba bb BG br bw by BZ ca ch cn co Cr Cu cz de dk DM dz EC ee eg es fi GB GD ge GH GM HR Hu id il in is jpke kg KP krkzlc. Road LR LS LT horse MD MG MK MN MW MX Nani NO NZOM PG PH PL PT RO RU SC SD SE SG SL SYTJ TM TN TR Tzuaguus VC VN Yu ZAZZZW ...
But in the European Patent Office, I didn't find any relatives of China, and of course I didn't know what the landlord wanted to ask, so I made a further search.
The attachment is the original American patent.