Patent attributes
A folding chair has a first frame assembly, a second frame assembly, a front crossbar assembly, and a rear crossbar assembly. The front crossbar assembly has a front primary crossbar member, a front upper secondary crossbar member, a front lower secondary crossbar member, and a locking interface. The locking interface has an upper receiving portion on one end of the channel and a lower receiving portion on an opposite end of the channel. When the folding chair is in the expanded position and the feet of the frame assemblies are supported on a support surface, the front primary crossbar member has an upward facing portion that is releasably retained in the upper receiving portion of the locking interface and a bottom facing portion that is releasably retained in the lower receiving portion of the locking interface.