Aside from the separate conversation about the validity of a scent trademark --- trademarks have very different purposes for existing than a copyright or a pate

Aside from the separate conversation about the validity of a scent trademark --- trademarks have very different purposes for existing than a copyright or a patent. The point of a trademark is to protect consumers from being confused in the marketplace. You can violate trademark without copying a mark exactly. You can also copy a mark exactly and be completely justified in your usage. Extreme precision in defining the mark isn't totally necessary.