The patent for home appearance has not been renewed. Can we apply for a patent?

You can apply, but it's meaningless. If it is similar to the other party's design, even if it is authorized, it cannot be used to protect rights. If others declare it invalid, the patent cannot be saved. According to the Patent Law, the design granted the patent right in Article 23 does not belong to the existing design; Before the filing date, no unit or individual has filed an application with the patent administration department of the State Council for the same design, and it is recorded in the patent documents published after the filing date. Compared with the existing design or the combination of existing design features, the patented design should have obvious differences.