For more details on specific registrations, you can visit the Official U.S. Copyright Office or check legal definitions at the Cornell Law School Legal Information Institute .
If you're looking for something different, are you asking about: for a specific product you've designed? How to register a creative work with the Copyright Office? General productivity or "useful" life advice articles? Useful Articles - Copyright 121010346_1559680990882773_7030480718447979623_...
A lamp base shaped like a statue is protected as a sculpture, even though the lamp itself is a functional "useful article". For more details on specific registrations, you can
Under US copyright law, a is an item with an intrinsic utilitarian function that goes beyond just conveying information or portraying its own appearance. How to register a creative work with the Copyright Office
You cannot copyright the "shape" of a dress, but you can copyright an original fabric pattern printed on it.
While code is protected as a literary work, the functional "mechanics" of a game may fall under different legal standards than its artistic assets.
💡 Copyright protects the expression of an idea (the art), not the utilitarian function of the object itself.