The novel aspects of the ornamental appearance (i.e., shape, texture, color, etc.) of an item of manufacture are protected for fourteen years with a U.S. Design Patent. To date, over half a million design patents have been issued.
The subject matter of this (interesting design patent) is now in the public domain, and therefore anyone can now freely make and sell the design.
This (design patent) lucratively covers a replacement wear part for a large grappling machine that otherwise would be copied and sold by third party Chinese manufacturers.