HOW LONG DOES A TRADEMARK LAST?

A trademark can last indefinitely as long as it continues in use and is not abandoned. A Federal Registration may be renewed every ten years if the mark remains in use. When a trademark is first federally registered, after five years an affidavit must be filed to establish that the mark is still in use, and if that use has been continuous, the registration can become “incontestable.” At that point, the validity of the registration can only be attacked for limited bases, such as abandonment.