The lid and the cup are integrally protected together.
have no use for
The patent does not infringe the patent right. If its other shapes are similar to yours, only a handle is added, then the cups and lids it produces are infringing.
It depends on whether the replacement parts are similar or the same as the parts you apply for patent.
If you are applying for a patent for invention (or utility model)
First, see where your invention is. Second, see how your claim is written.
You don't need to apply separately, you can write it in the claim (even if both meet the patentability, you can apply for both in one patent)
As above, applying for a patent is not infringement, only if the product meets the characteristics in your claim is infringement;
If you have the exclusive right to distribute the cup body and lid, then no matter how you change it, as long as you have the characteristics in your patent application, it will be considered as infringement.
However, the utility model is a new practical technical scheme to protect the shape, structure or combination of products. I wonder if you are satisfied with this lid or cup?